diff --git a/AssetStudio/AssetsManager.cs b/AssetStudio/AssetsManager.cs
index 805b356..7001929 100644
--- a/AssetStudio/AssetsManager.cs
+++ b/AssetStudio/AssetsManager.cs
@@ -11,20 +11,48 @@ namespace AssetStudio
 {
     public class AssetsManager
     {
-        public string SpecifyUnityVersion;
         public bool ZstdEnabled = true;
         public bool LoadingViaTypeTreeEnabled = true;
         public List<SerializedFile> assetsFileList = new List<SerializedFile>();
-        private HashSet<ClassIDType> filteredAssetTypesList = new HashSet<ClassIDType>();
 
         internal Dictionary<string, int> assetsFileIndexCache = new Dictionary<string, int>(StringComparer.OrdinalIgnoreCase);
         internal ConcurrentDictionary<string, BinaryReader> resourceFileReaders = new ConcurrentDictionary<string, BinaryReader>(StringComparer.OrdinalIgnoreCase);
 
+        private UnityVersion specifiedUnityVersion;
         private List<string> importFiles = new List<string>();
+        private HashSet<ClassIDType> filteredAssetTypesList = new HashSet<ClassIDType>();
         private HashSet<string> importFilesHash = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
         private HashSet<string> noexistFiles = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
         private HashSet<string> assetsFileListHash = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
 
+        public UnityVersion SpecifyUnityVersion
+        {
+            get => specifiedUnityVersion;
+            set
+            {
+                if (specifiedUnityVersion == value)
+                {
+                    return;
+                }
+                if (value == null)
+                {
+                    specifiedUnityVersion = null;
+                    Logger.Info("Specified Unity version: None");
+                    return;
+                }
+
+                if (string.IsNullOrEmpty(value.BuildType))
+                {
+                    throw new NotSupportedException("Specified Unity version is not in a correct format.\n" +
+                        "Specify full Unity version, including letters at the end.\n" +
+                        "Example: 2017.4.39f1");
+                }
+
+                specifiedUnityVersion = value;
+                Logger.Info($"Specified Unity version: {specifiedUnityVersion}");
+            }
+        }
+
         public void SetAssetFilter(params ClassIDType[] classIDTypes)
         {
             if (filteredAssetTypesList.Count == 0)
@@ -230,7 +258,7 @@ namespace AssetStudio
             return true;
         }
 
-        private bool LoadAssetsFromMemory(FileReader reader, string originalPath, string unityVersion = null)
+        private bool LoadAssetsFromMemory(FileReader reader, string originalPath, UnityVersion assetBundleUnityVer = null)
         {
             if (!assetsFileListHash.Contains(reader.FileName))
             {
@@ -238,9 +266,9 @@ namespace AssetStudio
                 {
                     var assetsFile = new SerializedFile(reader, this);
                     assetsFile.originalPath = originalPath;
-                    if (!string.IsNullOrEmpty(unityVersion) && assetsFile.header.m_Version < SerializedFileFormatVersion.Unknown_7)
+                    if (assetBundleUnityVer != null && assetsFile.header.m_Version < SerializedFileFormatVersion.Unknown_7)
                     {
-                        assetsFile.SetVersion(unityVersion);
+                        assetsFile.SetVersion(assetBundleUnityVer);
                     }
                     CheckStrippedVersion(assetsFile);
                     assetsFileList.Add(assetsFile);
@@ -270,7 +298,7 @@ namespace AssetStudio
             Logger.Info("Loading " + reader.FullPath);
             try
             {
-                var bundleFile = new BundleFile(reader, ZstdEnabled, SpecifyUnityVersion);
+                var bundleFile = new BundleFile(reader, ZstdEnabled, specifiedUnityVersion);
                 foreach (var file in bundleFile.fileList)
                 {
                     var dummyPath = Path.Combine(Path.GetDirectoryName(reader.FullPath), file.fileName);
@@ -448,11 +476,11 @@ namespace AssetStudio
 
         public void CheckStrippedVersion(SerializedFile assetsFile)
         {
-            if (assetsFile.IsVersionStripped && string.IsNullOrEmpty(SpecifyUnityVersion))
+            if (assetsFile.version.IsStripped && specifiedUnityVersion == null)
             {
-                throw new NotSupportedException("The Unity version has been stripped, please set the version in the options");
+                throw new NotSupportedException("The asset's Unity version has been stripped, please set the version in the options");
             }
-            if (!string.IsNullOrEmpty(SpecifyUnityVersion))
+            if (specifiedUnityVersion != null)
             {
                 assetsFile.SetVersion(SpecifyUnityVersion);
             }
@@ -560,7 +588,7 @@ namespace AssetStudio
                                 obj = new RectTransform(objectReader);
                                 break;
                             case ClassIDType.Shader:
-                                if (objectReader.version[0] < 2021)
+                                if (objectReader.version < 2021)
                                     obj = new Shader(objectReader);
                                 break;
                             case ClassIDType.SkinnedMeshRenderer:
diff --git a/AssetStudio/BundleFile.cs b/AssetStudio/BundleFile.cs
index 6b492fa..6881492 100644
--- a/AssetStudio/BundleFile.cs
+++ b/AssetStudio/BundleFile.cs
@@ -3,7 +3,6 @@ using ZstdSharp;
 using System;
 using System.IO;
 using System.Linq;
-using System.Text.RegularExpressions;
 
 namespace AssetStudio
 {
@@ -48,7 +47,7 @@ namespace AssetStudio
             public string signature;
             public uint version;
             public string unityVersion;
-            public string unityRevision;
+            public UnityVersion unityRevision;
             public long size;
             public uint compressedBlocksInfoSize;
             public uint uncompressedBlocksInfoSize;
@@ -76,13 +75,13 @@ namespace AssetStudio
 
         public StreamFile[] fileList;
 
-        public BundleFile(FileReader reader, bool useZstd, string specUnityVer = "")
+        public BundleFile(FileReader reader, bool useZstd, UnityVersion specUnityVer = null)
         {
             m_Header = new Header();
             m_Header.signature = reader.ReadStringToNull();
             m_Header.version = reader.ReadUInt32();
             m_Header.unityVersion = reader.ReadStringToNull();
-            m_Header.unityRevision = reader.ReadStringToNull();
+            m_Header.unityRevision = new UnityVersion(reader.ReadStringToNull());
             switch (m_Header.signature)
             {
                 case "UnityArchive":
@@ -104,15 +103,25 @@ namespace AssetStudio
                     ReadHeader(reader);
 
                     var isUnityCnEnc = false;
-                    var unityVerStr = string.IsNullOrEmpty(specUnityVer) ? m_Header.unityRevision : specUnityVer;
-                    int[] ver = Regex.Matches(unityVerStr, @"\d+").Cast<Match>().Select(x => int.Parse(x.Value)).ToArray();
-                    if (ver.Length > 0 && ver[0] != 0)
+                    var unityVer = m_Header.unityRevision;
+                    if (specUnityVer != null)
+                    {
+                        if (!unityVer.IsStripped && specUnityVer != unityVer)
+                        {
+                            Logger.Warning($"Detected Unity version is different from the specified one ({specUnityVer.FullVersion.Color(ColorConsole.BrightCyan)}).\n" +
+                                $"Assets may load with errors.\n" +
+                                $"It is recommended to specify the detected Unity version: {unityVer.FullVersion.Color(ColorConsole.BrightCyan)}");
+                        }
+                        unityVer = specUnityVer;
+                    }
+
+                    if (!unityVer.IsStripped)
                     {
                         // https://issuetracker.unity3d.com/issues/files-within-assetbundles-do-not-start-on-aligned-boundaries-breaking-patching-on-nintendo-switch
-                        if (ver[0] < 2020
-                            || (ver[0] == 2020 && ver[1] <= 3 && ver[2] < 34)
-                            || (ver[0] == 2021 && ver[1] <= 3 && ver[2] < 2)
-                            || (ver[0] == 2022 && ver[1] <= 1 && ver[2] < 1))
+                        if (unityVer < 2020
+                            || unityVer.IsInRange(2020, (2020, 3, 34))
+                            || unityVer.IsInRange(2021, (2021, 3, 2))
+                            || unityVer.IsInRange(2022, (2022, 1, 1)))
                         {
                             isUnityCnEnc = ((CnEncryptionFlags)m_Header.flags & CnEncryptionFlags.OldFlag) != 0;
                         }
@@ -123,10 +132,14 @@ namespace AssetStudio
                     }
                     if (isUnityCnEnc)
                     {
-                        throw new NotSupportedException("Unsupported bundle file. UnityCN encryption was detected.");
+                        var msg = "Unsupported bundle file. ";
+                        msg += specUnityVer != null
+                            ? "UnityCN encryption was detected or the specified Unity version is incorrect."
+                            : "UnityCN encryption was detected.";
+                        throw new NotSupportedException(msg);
                     }
 
-                    ReadBlocksInfoAndDirectory(reader, ver);
+                    ReadBlocksInfoAndDirectory(reader, unityVer);
                     using (var blocksStream = CreateBlocksStream(reader.FullPath))
                     {
                         ReadBlocks(reader, blocksStream, useZstd);
@@ -261,7 +274,7 @@ namespace AssetStudio
             }
         }
 
-        private void ReadBlocksInfoAndDirectory(FileReader reader, int[] unityVer)
+        private void ReadBlocksInfoAndDirectory(FileReader reader, UnityVersion unityVer)
         {
             byte[] blocksInfoBytes;
 
@@ -269,7 +282,7 @@ namespace AssetStudio
             {
                 reader.AlignStream(16);
             }
-            else if (unityVer[0] >= 2019 && unityVer[1] >= 4)
+            else if (unityVer >= (2019, 4))
             {
                 //check if we need to align the reader
                 //- align to 16 bytes and check if all are 0
diff --git a/AssetStudio/Classes/AnimationClip.cs b/AssetStudio/Classes/AnimationClip.cs
index 4ea8af3..b6fdd85 100644
--- a/AssetStudio/Classes/AnimationClip.cs
+++ b/AssetStudio/Classes/AnimationClip.cs
@@ -25,7 +25,7 @@ namespace AssetStudio
             value = readerFunc();
             inSlope = readerFunc();
             outSlope = readerFunc();
-            if (reader.version[0] >= 2018) //2018 and up
+            if (reader.version >= 2018) //2018 and up
             {
                 weightedMode = reader.ReadInt32();
                 inWeight = readerFunc();
@@ -55,7 +55,7 @@ namespace AssetStudio
 
             m_PreInfinity = reader.ReadInt32();
             m_PostInfinity = reader.ReadInt32();
-            if (version[0] > 5 || (version[0] == 5 && version[1] >= 3))//5.3 and up
+            if (version >= (5, 3)) //5.3 and up
             {
                 m_RotationOrder = reader.ReadInt32();
             }
@@ -323,7 +323,7 @@ namespace AssetStudio
             path = reader.ReadAlignedString();
             classID = (ClassIDType)reader.ReadInt32();
             script = new PPtr<MonoScript>(reader);
-            if (version[0] > 2022 || (version[0] == 2022 && version[1] >= 2)) //2022.2 and up
+            if (version >= (2022, 2)) //2022.2 and up
             {
                 flags = reader.ReadInt32();
             }
@@ -369,7 +369,7 @@ namespace AssetStudio
             path = reader.ReadAlignedString();
             classID = reader.ReadInt32();
             script = new PPtr<MonoScript>(reader);
-            if (version[0] > 2022 || (version[0] == 2022 && version[1] >= 2)) //2022.2 and up
+            if (version >= (2022, 2)) //2022.2 and up
             {
                 flags = reader.ReadInt32();
             }
@@ -401,9 +401,9 @@ namespace AssetStudio
         public xform(ObjectReader reader)
         {
             var version = reader.version;
-            t = version[0] > 5 || (version[0] == 5 && version[1] >= 4) ? reader.ReadVector3() : (Vector3)reader.ReadVector4();//5.4 and up
+            t = version >= (5, 4) ? reader.ReadVector3() : (Vector3)reader.ReadVector4();//5.4 and up
             q = reader.ReadQuaternion();
-            s = version[0] > 5 || (version[0] == 5 && version[1] >= 4) ? reader.ReadVector3() : (Vector3)reader.ReadVector4();//5.4 and up
+            s = version >= (5, 4) ? reader.ReadVector3() : (Vector3)reader.ReadVector4();//5.4 and up
         }
     }
 
@@ -445,9 +445,9 @@ namespace AssetStudio
             m_X = new xform(reader);
             m_WeightT = reader.ReadSingle();
             m_WeightR = reader.ReadSingle();
-            if (version[0] >= 5)//5.0 and up
+            if (version >= 5)//5.0 and up
             {
-                m_HintT = version[0] > 5 || (version[0] == 5 && version[1] >= 4) ? reader.ReadVector3() : (Vector3)reader.ReadVector4();//5.4 and up
+                m_HintT = version >= (5, 4) ? reader.ReadVector3() : (Vector3)reader.ReadVector4();//5.4 and up
                 m_HintWeightT = reader.ReadSingle();
             }
         }
@@ -470,7 +470,7 @@ namespace AssetStudio
         {
             var version = reader.version;
             m_RootX = new xform(reader);
-            m_LookAtPosition = version[0] > 5 || (version[0] == 5 && version[1] >= 4) ? reader.ReadVector3() : (Vector3)reader.ReadVector4();//5.4 and up
+            m_LookAtPosition = version >= (5, 4) ? reader.ReadVector3() : (Vector3)reader.ReadVector4();//5.4 and up
             m_LookAtWeight = reader.ReadVector4();
 
             int numGoals = reader.ReadInt32();
@@ -485,13 +485,13 @@ namespace AssetStudio
 
             m_DoFArray = reader.ReadSingleArray();
 
-            if (version[0] > 5 || (version[0] == 5 && version[1] >= 2))//5.2 and up
+            if (version >= (5, 2))//5.2 and up
             {
                 int numTDof = reader.ReadInt32();
                 m_TDoFArray = new Vector3[numTDof];
                 for (int i = 0; i < numTDof; i++)
                 {
-                    m_TDoFArray[i] = version[0] > 5 || (version[0] == 5 && version[1] >= 4) ? reader.ReadVector3() : (Vector3)reader.ReadVector4();//5.4 and up
+                    m_TDoFArray[i] = version >= (5, 4) ? reader.ReadVector3() : (Vector3)reader.ReadVector4();//5.4 and up
                 }
             }
         }
@@ -646,7 +646,7 @@ namespace AssetStudio
         {
             var version = reader.version;
             m_ID = reader.ReadUInt32();
-            if (version[0] < 5 || (version[0] == 5 && version[1] < 5))//5.5 down
+            if (version < (5, 5)) //5.5 down
             {
                 m_TypeID = reader.ReadUInt32();
             }
@@ -698,11 +698,11 @@ namespace AssetStudio
             var version = reader.version;
             m_StreamedClip = new StreamedClip(reader);
             m_DenseClip = new DenseClip(reader);
-            if (version[0] > 4 || (version[0] == 4 && version[1] >= 3)) //4.3 and up
+            if (version >= (4, 3)) //4.3 and up
             {
                 m_ConstantClip = new ConstantClip(reader);
             }
-            if (version[0] < 2018 || (version[0] == 2018 && version[1] < 3)) //2018.3 down
+            if (version < (2018, 3)) //2018.3 down
             {
                 m_Binding = new ValueArrayConstant(reader);
             }
@@ -806,18 +806,18 @@ namespace AssetStudio
             var version = reader.version;
             m_DeltaPose = new HumanPose(reader);
             m_StartX = new xform(reader);
-            if (version[0] > 5 || (version[0] == 5 && version[1] >= 5))//5.5 and up
+            if (version >= (5, 5)) //5.5 and up
             {
                 m_StopX = new xform(reader);
             }
             m_LeftFootStartX = new xform(reader);
             m_RightFootStartX = new xform(reader);
-            if (version[0] < 5)//5.0 down
+            if (version < 5)//5.0 down
             {
                 m_MotionStartX = new xform(reader);
                 m_MotionStopX = new xform(reader);
             }
-            m_AverageSpeed = version[0] > 5 || (version[0] == 5 && version[1] >= 4) ? reader.ReadVector3() : (Vector3)reader.ReadVector4();//5.4 and up
+            m_AverageSpeed = version >= (5, 4) ? reader.ReadVector3() : (Vector3)reader.ReadVector4();//5.4 and up
             m_Clip = new OffsetPtr(reader);
             m_StartTime = reader.ReadSingle();
             m_StopTime = reader.ReadSingle();
@@ -827,7 +827,7 @@ namespace AssetStudio
             m_AverageAngularSpeed = reader.ReadSingle();
 
             m_IndexArray = reader.ReadInt32Array();
-            if (version[0] < 4 || (version[0] == 4 && version[1] < 3)) //4.3 down
+            if (version < (4, 3)) //4.3 down
             {
                 var m_AdditionalCurveIndexArray = reader.ReadInt32Array();
             }
@@ -837,13 +837,13 @@ namespace AssetStudio
             {
                 m_ValueArrayDelta[i] = new ValueDelta(reader);
             }
-            if (version[0] > 5 || (version[0] == 5 && version[1] >= 3))//5.3 and up
+            if (version >= (5, 3))//5.3 and up
             {
                 m_ValueArrayReferencePose = reader.ReadSingleArray();
             }
 
             m_Mirror = reader.ReadBoolean();
-            if (version[0] > 4 || (version[0] == 4 && version[1] >= 3)) //4.3 and up
+            if (version >= (4, 3)) //4.3 and up
             {
                 m_LoopTime = reader.ReadBoolean();
             }
@@ -851,7 +851,7 @@ namespace AssetStudio
             m_LoopBlendOrientation = reader.ReadBoolean();
             m_LoopBlendPositionY = reader.ReadBoolean();
             m_LoopBlendPositionXZ = reader.ReadBoolean();
-            if (version[0] > 5 || (version[0] == 5 && version[1] >= 5))//5.5 and up
+            if (version >= (5, 5))//5.5 and up
             {
                 m_StartAtOrigin = reader.ReadBoolean();
             }
@@ -881,7 +881,7 @@ namespace AssetStudio
             path = reader.ReadUInt32();
             attribute = reader.ReadUInt32();
             script = new PPtr<Object>(reader);
-            if (version[0] > 5 || (version[0] == 5 && version[1] >= 6)) //5.6 and up
+            if (version >= (5, 6)) //5.6 and up
             {
                 typeID = (ClassIDType)reader.ReadInt32();
             }
@@ -891,7 +891,7 @@ namespace AssetStudio
             }
             customType = reader.ReadByte();
             isPPtrCurve = reader.ReadByte();
-            if (version[0] > 2022 || (version[0] == 2022 && version[1] >= 1)) //2022.1 and up
+            if (version >= (2022, 1)) //2022.1 and up
             {
                 isIntCurve = reader.ReadByte();
             }
@@ -980,7 +980,7 @@ namespace AssetStudio
             data = reader.ReadAlignedString();
             objectReferenceParameter = new PPtr<Object>(reader);
             floatParameter = reader.ReadSingle();
-            if (version[0] >= 3) //3 and up
+            if (version >= 3) //3 and up
             {
                 intParameter = reader.ReadInt32();
             }
@@ -1045,11 +1045,11 @@ namespace AssetStudio
 
         public AnimationClip(ObjectReader reader) : base(reader)
         {
-            if (version[0] >= 5)//5.0 and up
+            if (version >= 5)//5.0 and up
             {
                 m_Legacy = reader.ReadBoolean();
             }
-            else if (version[0] >= 4)//4.0 and up
+            else if (version >= 4)//4.0 and up
             {
                 m_AnimationType = (AnimationType)reader.ReadInt32();
                 if (m_AnimationType == AnimationType.Legacy)
@@ -1060,7 +1060,7 @@ namespace AssetStudio
                 m_Legacy = true;
             }
             m_Compressed = reader.ReadBoolean();
-            if (version[0] > 4 || (version[0] == 4 && version[1] >= 3))//4.3 and up
+            if (version >= (4, 3))//4.3 and up
             {
                 m_UseHighQualityCurve = reader.ReadBoolean();
             }
@@ -1079,7 +1079,7 @@ namespace AssetStudio
                 m_CompressedRotationCurves[i] = new CompressedAnimationCurve(reader);
             }
 
-            if (version[0] > 5 || (version[0] == 5 && version[1] >= 3))//5.3 and up
+            if (version >= (5, 3))//5.3 and up
             {
                 int numEulerCurves = reader.ReadInt32();
                 m_EulerCurves = new Vector3Curve[numEulerCurves];
@@ -1110,7 +1110,7 @@ namespace AssetStudio
                 m_FloatCurves[i] = new FloatCurve(reader);
             }
 
-            if (version[0] > 4 || (version[0] == 4 && version[1] >= 3)) //4.3 and up
+            if (version >= (4, 3)) //4.3 and up
             {
                 int numPtrCurves = reader.ReadInt32();
                 m_PPtrCurves = new PPtrCurve[numPtrCurves];
@@ -1122,20 +1122,20 @@ namespace AssetStudio
 
             m_SampleRate = reader.ReadSingle();
             m_WrapMode = reader.ReadInt32();
-            if (version[0] > 3 || (version[0] == 3 && version[1] >= 4)) //3.4 and up
+            if (version >= (3, 4)) //3.4 and up
             {
                 m_Bounds = new AABB(reader);
             }
-            if (version[0] >= 4)//4.0 and up
+            if (version >= 4)//4.0 and up
             {
                 m_MuscleClipSize = reader.ReadUInt32();
                 m_MuscleClip = new ClipMuscleConstant(reader);
             }
-            if (version[0] > 4 || (version[0] == 4 && version[1] >= 3)) //4.3 and up
+            if (version >= (4, 3)) //4.3 and up
             {
                 m_ClipBindingConstant = new AnimationClipBindingConstant(reader);
             }
-            if (version[0] > 2018 || (version[0] == 2018 && version[1] >= 3)) //2018.3 and up
+            if (version >= (2018, 3)) //2018.3 and up
             {
                 var m_HasGenericRootTransform = reader.ReadBoolean();
                 var m_HasMotionFloatCurves = reader.ReadBoolean();
@@ -1147,7 +1147,7 @@ namespace AssetStudio
             {
                 m_Events[i] = new AnimationEvent(reader);
             }
-            if (version[0] >= 2017) //2017 and up
+            if (version >= 2017) //2017 and up
             {
                 reader.AlignStream();
             }
diff --git a/AssetStudio/Classes/Animator.cs b/AssetStudio/Classes/Animator.cs
index c7f5046..0f2ffa4 100644
--- a/AssetStudio/Classes/Animator.cs
+++ b/AssetStudio/Classes/Animator.cs
@@ -17,47 +17,47 @@ namespace AssetStudio
             m_Controller = new PPtr<RuntimeAnimatorController>(reader);
             var m_CullingMode = reader.ReadInt32();
 
-            if (version[0] > 4 || (version[0] == 4 && version[1] >= 5)) //4.5 and up
+            if (version >= (4, 5)) //4.5 and up
             {
                 var m_UpdateMode = reader.ReadInt32();
             }
 
             var m_ApplyRootMotion = reader.ReadBoolean();
-            if (version[0] == 4 && version[1] >= 5) //4.5 and up - 5.0 down
+            if (version == 4 && version.Minor >= 5) //4.5 and up - 5.0 down
             {
                 reader.AlignStream();
             }
 
-            if (version[0] >= 5) //5.0 and up
+            if (version >= 5) //5.0 and up
             {
                 var m_LinearVelocityBlending = reader.ReadBoolean();
-                if (version[0] > 2021 || (version[0] == 2021 && version[1] >= 2)) //2021.2 and up
+                if (version >= (2021, 2)) //2021.2 and up
                 {
                     var m_StabilizeFeet = reader.ReadBoolean();
                 }
                 reader.AlignStream();
             }
 
-            if (version[0] < 4 || (version[0] == 4 && version[1] < 5)) //4.5 down
+            if (version < (4, 5)) //4.5 down
             {
                 var m_AnimatePhysics = reader.ReadBoolean();
             }
 
-            if (version[0] > 4 || (version[0] == 4 && version[1] >= 3)) //4.3 and up
+            if (version >= (4, 3)) //4.3 and up
             {
                 m_HasTransformHierarchy = reader.ReadBoolean();
             }
 
-            if (version[0] > 4 || (version[0] == 4 && version[1] >= 5)) //4.5 and up
+            if (version >= (4, 5)) //4.5 and up
             {
                 var m_AllowConstantClipSamplingOptimization = reader.ReadBoolean();
             }
-            if (version[0] >= 5 && version[0] < 2018) //5.0 and up - 2018 down
+            if (version.IsInRange(5, 2018)) //5.0 and up - 2018 down
             {
                 reader.AlignStream();
             }
 
-            if (version[0] >= 2018) //2018 and up
+            if (version >= 2018) //2018 and up
             {
                 var m_KeepAnimatorControllerStateOnDisable = reader.ReadBoolean();
                 reader.AlignStream();
diff --git a/AssetStudio/Classes/AnimatorController.cs b/AssetStudio/Classes/AnimatorController.cs
index 24cdcdf..5baecb0 100644
--- a/AssetStudio/Classes/AnimatorController.cs
+++ b/AssetStudio/Classes/AnimatorController.cs
@@ -17,7 +17,7 @@ namespace AssetStudio
 
             word0 = reader.ReadUInt32();
             word1 = reader.ReadUInt32();
-            if (version[0] > 5 || (version[0] == 5 && version[1] >= 2)) //5.2 and up
+            if (version >= (5, 2)) //5.2 and up
             {
                 word2 = reader.ReadUInt32();
             }
@@ -73,12 +73,12 @@ namespace AssetStudio
             m_SkeletonMask = new SkeletonMask(reader);
             m_Binding = reader.ReadUInt32();
             m_LayerBlendingMode = reader.ReadInt32();
-            if (version[0] > 4 || (version[0] == 4 && version[1] >= 2)) //4.2 and up
+            if (version >= (4, 2)) //4.2 and up
             {
                 m_DefaultWeight = reader.ReadSingle();
             }
             m_IKPass = reader.ReadBoolean();
-            if (version[0] > 4 || (version[0] == 4 && version[1] >= 2)) //4.2 and up
+            if (version >= (4, 2)) //4.2 and up
             {
                 m_SyncedLayerAffectsTiming = reader.ReadBoolean();
             }
@@ -131,7 +131,7 @@ namespace AssetStudio
             }
 
             m_DestinationState = reader.ReadUInt32();
-            if (version[0] >= 5) //5.0 and up
+            if (version >= 5) //5.0 and up
             {
                 m_FullPathID = reader.ReadUInt32();
             }
@@ -140,7 +140,7 @@ namespace AssetStudio
             m_UserID = reader.ReadUInt32();
             m_TransitionDuration = reader.ReadSingle();
             m_TransitionOffset = reader.ReadSingle();
-            if (version[0] >= 5) //5.0 and up
+            if (version >= 5) //5.0 and up
             {
                 m_ExitTime = reader.ReadSingle();
                 m_HasExitTime = reader.ReadBoolean();
@@ -154,7 +154,7 @@ namespace AssetStudio
                 m_Atomic = reader.ReadBoolean();
             }
 
-            if (version[0] > 4 || (version[0] == 4 && version[1] >= 5)) //4.5 and up
+            if (version >= (4, 5)) //4.5 and up
             {
                 m_CanTransitionToSelf = reader.ReadBoolean();
             }
@@ -252,43 +252,41 @@ namespace AssetStudio
         {
             var version = reader.version;
 
-            if (version[0] > 4 || (version[0] == 4 && version[1] >= 1)) //4.1 and up
+            if (version >= (4, 1)) //4.1 and up
             {
                 m_BlendType = reader.ReadUInt32();
             }
             m_BlendEventID = reader.ReadUInt32();
-            if (version[0] > 4 || (version[0] == 4 && version[1] >= 1)) //4.1 and up
+            if (version >= (4, 1)) //4.1 and up
             {
                 m_BlendEventYID = reader.ReadUInt32();
             }
             m_ChildIndices = reader.ReadUInt32Array();
-            if (version[0] < 4 || (version[0] == 4 && version[1] < 1)) //4.1 down
+            if (version < (4, 1)) //4.1 down
             {
                 m_ChildThresholdArray = reader.ReadSingleArray();
             }
 
-            if (version[0] > 4 || (version[0] == 4 && version[1] >= 1)) //4.1 and up
+            if (version >= (4, 1)) //4.1 and up
             {
                 m_Blend1dData = new Blend1dDataConstant(reader);
                 m_Blend2dData = new Blend2dDataConstant(reader);
             }
 
-            if (version[0] >= 5) //5.0 and up
+            if (version >= 5) //5.0 and up
             {
                 m_BlendDirectData = new BlendDirectDataConstant(reader);
             }
 
             m_ClipID = reader.ReadUInt32();
-            if (version[0] == 4 && version[1] >= 5) //4.5 - 5.0
+            if (version == 4 && version.Minor >= 5) //4.5 - 5.0
             {
                 m_ClipIndex = reader.ReadUInt32();
             }
 
             m_Duration = reader.ReadSingle();
 
-            if (version[0] > 4
-                || (version[0] == 4 && version[1] > 1)
-                || (version[0] == 4 && version[1] == 1 && version[2] >= 3)) //4.1.3 and up
+            if (version >= (4, 1, 3)) //4.1.3 and up
             {
                 m_CycleOffset = reader.ReadSingle();
                 m_Mirror = reader.ReadBoolean();
@@ -313,7 +311,7 @@ namespace AssetStudio
                 m_NodeArray[i] = new BlendTreeNodeConstant(reader);
             }
 
-            if (version[0] < 4 || (version[0] == 4 && version[1] < 5)) //4.5 down
+            if (version < (4, 5)) //4.5 down
             {
                 m_BlendEventArrayConstant = new ValueArrayConstant(reader);
             }
@@ -354,7 +352,7 @@ namespace AssetStudio
 
             m_BlendTreeConstantIndexArray = reader.ReadInt32Array();
 
-            if (version[0] < 5 || (version[0] == 5 && version[1] < 2)) //5.2 down
+            if (version < (5, 2)) //5.2 down
             {
                 int numInfos = reader.ReadInt32();
                 m_LeafInfoArray = new LeafInfoConstant[numInfos];
@@ -372,41 +370,41 @@ namespace AssetStudio
             }
 
             m_NameID = reader.ReadUInt32();
-            if (version[0] > 4 || (version[0] == 4 && version[1] >= 3)) //4.3 and up
+            if (version >= (4, 3)) //4.3 and up
             {
                 m_PathID = reader.ReadUInt32();
             }
-            if (version[0] >= 5) //5.0 and up
+            if (version >= 5) //5.0 and up
             {
                 m_FullPathID = reader.ReadUInt32();
             }
 
             m_TagID = reader.ReadUInt32();
-            if (version[0] > 5 || (version[0] == 5 && version[1] >= 1)) //5.1 and up
+            if (version >= (5, 1)) //5.1 and up
             {
                 m_SpeedParamID = reader.ReadUInt32();
                 m_MirrorParamID = reader.ReadUInt32();
                 m_CycleOffsetParamID = reader.ReadUInt32();
             }
 
-            if (version[0] > 2017 || (version[0] == 2017 && version[1] >= 2)) //2017.2 and up
+            if (version >= (2017, 2)) //2017.2 and up
             {
                 var m_TimeParamID = reader.ReadUInt32();
             }
 
             m_Speed = reader.ReadSingle();
-            if (version[0] > 4 || (version[0] == 4 && version[1] >= 1)) //4.1 and up
+            if (version >= (4, 1)) //4.1 and up
             {
                 m_CycleOffset = reader.ReadSingle();
             }
             m_IKOnFeet = reader.ReadBoolean();
-            if (version[0] >= 5) //5.0 and up
+            if (version >= 5) //5.0 and up
             {
                 m_WriteDefaultValues = reader.ReadBoolean();
             }
 
             m_Loop = reader.ReadBoolean();
-            if (version[0] > 4 || (version[0] == 4 && version[1] >= 1)) //4.1 and up
+            if (version >= (4, 1)) //4.1 and up
             {
                 m_Mirror = reader.ReadBoolean();
             }
@@ -480,7 +478,7 @@ namespace AssetStudio
                 m_AnyStateTransitionConstantArray[i] = new TransitionConstant(reader);
             }
 
-            if (version[0] >= 5) //5.0 and up
+            if (version >= 5) //5.0 and up
             {
                 int numSelectors = reader.ReadInt32();
                 m_SelectorStateConstantArray = new SelectorStateConstant[numSelectors];
@@ -509,7 +507,7 @@ namespace AssetStudio
         {
             var version = reader.version;
 
-            if (version[0] < 5 || (version[0] == 5 && version[1] < 5)) //5.5 down
+            if (version < (5, 5)) //5.5 down
             {
                 m_BoolValues = reader.ReadBooleanArray();
                 reader.AlignStream();
@@ -517,7 +515,7 @@ namespace AssetStudio
                 m_FloatValues = reader.ReadSingleArray();
             }
 
-            if (version[0] < 4 || (version[0] == 4 && version[1] < 3)) //4.3 down
+            if (version < (4, 3)) //4.3 down
             {
                 m_VectorValues = reader.ReadVector4Array();
             }
@@ -527,7 +525,7 @@ namespace AssetStudio
                 m_PositionValues = new Vector3[numPosValues];
                 for (int i = 0; i < numPosValues; i++)
                 {
-                    m_PositionValues[i] = version[0] > 5 || (version[0] == 5 && version[1] >= 4) ? reader.ReadVector3() : (Vector3)reader.ReadVector4(); //5.4 and up
+                    m_PositionValues[i] = version >= (5, 4) ? reader.ReadVector3() : (Vector3)reader.ReadVector4(); //5.4 and up
                 }
 
                 m_QuaternionValues = reader.ReadVector4Array();
@@ -536,10 +534,10 @@ namespace AssetStudio
                 m_ScaleValues = new Vector3[numScaleValues];
                 for (int i = 0; i < numScaleValues; i++)
                 {
-                    m_ScaleValues[i] = version[0] > 5 || (version[0] == 5 && version[1] >= 4) ? reader.ReadVector3() : (Vector3)reader.ReadVector4(); //5.4 and up
+                    m_ScaleValues[i] = version >= (5, 4) ? reader.ReadVector3() : (Vector3)reader.ReadVector4(); //5.4 and up
                 }
 
-                if (version[0] > 5 || (version[0] == 5 && version[1] >= 5)) //5.5 and up
+                if (version >= (5, 5)) //5.5 and up
                 {
                     m_FloatValues = reader.ReadSingleArray();
                     m_IntValues = reader.ReadInt32Array();
diff --git a/AssetStudio/Classes/AssetBundle.cs b/AssetStudio/Classes/AssetBundle.cs
index 24b88bd..b6199f7 100644
--- a/AssetStudio/Classes/AssetBundle.cs
+++ b/AssetStudio/Classes/AssetBundle.cs
@@ -42,7 +42,7 @@ namespace AssetStudio
 
             var m_MainAsset = new AssetInfo(reader);
 
-            if (version[0] == 5 && version[1] == 4) //5.4.x
+            if (version == (5, 4)) //5.4.x
             {
                 var m_ClassVersionMapSize = reader.ReadInt32();
                 for (var i = 0; i < m_ClassVersionMapSize; i++)
@@ -52,12 +52,12 @@ namespace AssetStudio
                 }
             }
 
-            if (version[0] > 4 || (version[0] == 4 && version[1] >= 2)) //4.2 and up
+            if (version >= (4, 2)) //4.2 and up
             {
                 var m_RuntimeCompatibility = reader.ReadUInt32();
             }
 
-            if (version[0] >= 5) //5.0 and up
+            if (version >= 5) //5.0 and up
             {
                 m_AssetBundleName = reader.ReadAlignedString();
 
diff --git a/AssetStudio/Classes/AudioClip.cs b/AssetStudio/Classes/AudioClip.cs
index 2237272..53a4c93 100644
--- a/AssetStudio/Classes/AudioClip.cs
+++ b/AssetStudio/Classes/AudioClip.cs
@@ -33,7 +33,7 @@ namespace AssetStudio
 
         public AudioClip(ObjectReader reader) : base(reader)
         {
-            if (version[0] < 5)
+            if (version < 5)
             {
                 m_Format = reader.ReadInt32();
                 m_Type = (FMODSoundType)reader.ReadInt32();
@@ -41,7 +41,7 @@ namespace AssetStudio
                 m_UseHardware = reader.ReadBoolean();
                 reader.AlignStream();
 
-                if (version[0] >= 4 || (version[0] == 3 && version[1] >= 2)) //3.2.0 to 5
+                if (version >= (3, 2)) //3.2.0 to 5
                 {
                     int m_Stream = reader.ReadInt32();
                     m_Size = reader.ReadInt32();
diff --git a/AssetStudio/Classes/Avatar.cs b/AssetStudio/Classes/Avatar.cs
index 97505ab..e8593a90 100644
--- a/AssetStudio/Classes/Avatar.cs
+++ b/AssetStudio/Classes/Avatar.cs
@@ -23,7 +23,7 @@ namespace AssetStudio
         public Limit(ObjectReader reader)
         {
             var version = reader.version;
-            if (version[0] > 5 || (version[0] == 5 && version[1] >= 4))//5.4 and up
+            if (version >= (5, 4))//5.4 and up
             {
                 m_Min = reader.ReadVector3();
                 m_Max = reader.ReadVector3();
@@ -50,7 +50,7 @@ namespace AssetStudio
             var version = reader.version;
             m_PreQ = reader.ReadVector4();
             m_PostQ = reader.ReadVector4();
-            if (version[0] > 5 || (version[0] == 5 && version[1] >= 4)) //5.4 and up
+            if (version >= (5, 4)) //5.4 and up
             {
                 m_Sgn = reader.ReadVector3();
             }
@@ -189,7 +189,7 @@ namespace AssetStudio
             m_LeftHand = new Hand(reader);
             m_RightHand = new Hand(reader);
 
-            if (version[0] < 2018 || (version[0] == 2018 && version[1] < 2)) //2018.2 down
+            if (version < (2018, 2)) //2018.2 down
             {
                 int numHandles = reader.ReadInt32();
                 m_Handles = new Handle[numHandles];
@@ -210,7 +210,7 @@ namespace AssetStudio
 
             m_HumanBoneMass = reader.ReadSingleArray();
 
-            if (version[0] < 2018 || (version[0] == 2018 && version[1] < 2)) //2018.2 down
+            if (version < (2018, 2)) //2018.2 down
             {
                 m_ColliderIndex = reader.ReadInt32Array();
             }
@@ -225,7 +225,7 @@ namespace AssetStudio
             m_FeetSpacing = reader.ReadSingle();
             m_HasLeftHand = reader.ReadBoolean();
             m_HasRightHand = reader.ReadBoolean();
-            if (version[0] > 5 || (version[0] == 5 && version[1] >= 2)) //5.2 and up
+            if (version >= (5, 2)) //5.2 and up
             {
                 m_HasTDoF = reader.ReadBoolean();
             }
@@ -254,7 +254,7 @@ namespace AssetStudio
             m_AvatarSkeleton = new Skeleton(reader);
             m_AvatarSkeletonPose = new SkeletonPose(reader);
 
-            if (version[0] > 4 || (version[0] == 4 && version[1] >= 3)) //4.3 and up
+            if (version >= (4, 3)) //4.3 and up
             {
                 m_DefaultPose = new SkeletonPose(reader);
 
@@ -265,7 +265,7 @@ namespace AssetStudio
 
             m_HumanSkeletonIndexArray = reader.ReadInt32Array();
 
-            if (version[0] > 4 || (version[0] == 4 && version[1] >= 3)) //4.3 and up
+            if (version >= (4, 3)) //4.3 and up
             {
                 m_HumanSkeletonReverseIndexArray = reader.ReadInt32Array();
             }
@@ -273,7 +273,7 @@ namespace AssetStudio
             m_RootMotionBoneIndex = reader.ReadInt32();
             m_RootMotionBoneX = new xform(reader);
 
-            if (version[0] > 4 || (version[0] == 4 && version[1] >= 3)) //4.3 and up
+            if (version >= (4, 3)) //4.3 and up
             {
                 m_RootMotionSkeleton = new Skeleton(reader);
                 m_RootMotionSkeletonPose = new SkeletonPose(reader);
diff --git a/AssetStudio/Classes/Font.cs b/AssetStudio/Classes/Font.cs
index 52b8371..0f76fa2 100644
--- a/AssetStudio/Classes/Font.cs
+++ b/AssetStudio/Classes/Font.cs
@@ -11,7 +11,7 @@ namespace AssetStudio
 
         public Font(ObjectReader reader) : base(reader)
         {
-            if ((version[0] == 5 && version[1] >= 5) || version[0] > 5)//5.5 and up
+            if (version >= (5, 5))//5.5 and up
             {
                 var m_LineSpacing = reader.ReadSingle();
                 var m_DefaultMaterial = new PPtr<Material>(reader);
@@ -43,7 +43,7 @@ namespace AssetStudio
             {
                 int m_AsciiStartOffset = reader.ReadInt32();
 
-                if (version[0] <= 3)
+                if (version <= 3)
                 {
                     int m_FontCountX = reader.ReadInt32();
                     int m_FontCountY = reader.ReadInt32();
@@ -52,7 +52,7 @@ namespace AssetStudio
                 float m_Kerning = reader.ReadSingle();
                 float m_LineSpacing = reader.ReadSingle();
 
-                if (version[0] <= 3)
+                if (version <= 3)
                 {
                     int m_PerCharacterKerning_size = reader.ReadInt32();
                     for (int i = 0; i < m_PerCharacterKerning_size; i++)
@@ -86,7 +86,7 @@ namespace AssetStudio
                     float vertheight = reader.ReadSingle();
                     float width = reader.ReadSingle();
 
-                    if (version[0] >= 4)
+                    if (version >= 4)
                     {
                         var flipped = reader.ReadBoolean();
                         reader.AlignStream();
@@ -103,7 +103,7 @@ namespace AssetStudio
                     float second = reader.ReadSingle();
                 }
 
-                if (version[0] <= 3)
+                if (version <= 3)
                 {
                     var m_GridFont = reader.ReadBoolean();
                     reader.AlignStream();
diff --git a/AssetStudio/Classes/GLTextureSettings.cs b/AssetStudio/Classes/GLTextureSettings.cs
index c81d1c6..461a98b 100644
--- a/AssetStudio/Classes/GLTextureSettings.cs
+++ b/AssetStudio/Classes/GLTextureSettings.cs
@@ -16,7 +16,7 @@
             m_FilterMode = reader.ReadInt32();
             m_Aniso = reader.ReadInt32();
             m_MipBias = reader.ReadSingle();
-            if (version[0] >= 2017)//2017.x and up
+            if (version >= 2017)//2017.x and up
             {
                 m_WrapMode = reader.ReadInt32(); //m_WrapU
                 int m_WrapV = reader.ReadInt32();
diff --git a/AssetStudio/Classes/GameObject.cs b/AssetStudio/Classes/GameObject.cs
index d129beb..1fec233 100644
--- a/AssetStudio/Classes/GameObject.cs
+++ b/AssetStudio/Classes/GameObject.cs
@@ -23,7 +23,7 @@ namespace AssetStudio
             m_Components = new PPtr<Component>[m_Component_size];
             for (int i = 0; i < m_Component_size; i++)
             {
-                if ((version[0] == 5 && version[1] < 5) || version[0] < 5) //5.5 down
+                if (version < (5, 5)) //5.5 down
                 {
                     int first = reader.ReadInt32();
                 }
diff --git a/AssetStudio/Classes/Material.cs b/AssetStudio/Classes/Material.cs
index dcc9f21..be2a55f 100644
--- a/AssetStudio/Classes/Material.cs
+++ b/AssetStudio/Classes/Material.cs
@@ -34,7 +34,7 @@ namespace AssetStudio
                 m_TexEnvs[i] = new KeyValuePair<string, UnityTexEnv>(reader.ReadAlignedString(), new UnityTexEnv(reader));
             }
 
-            if (version[0] >= 2021) //2021.1 and up
+            if (version >= 2021) //2021.1 and up
             {
                 int m_IntsSize = reader.ReadInt32();
                 m_Ints = new KeyValuePair<string, int>[m_IntsSize];
@@ -69,39 +69,39 @@ namespace AssetStudio
         {
             m_Shader = new PPtr<Shader>(reader);
 
-            if (version[0] == 4 && version[1] >= 1) //4.x
+            if (version == 4 && version.Minor >= 1) //4.x
             {
                 var m_ShaderKeywords = reader.ReadStringArray();
             }
 
-            if (version[0] > 2021 || (version[0] == 2021 && version[1] >= 3)) //2021.3 and up
+            if (version >= (2021, 3)) //2021.3 and up
             {
                 var m_ValidKeywords = reader.ReadStringArray();
                 var m_InvalidKeywords = reader.ReadStringArray();
             }
-            else if (version[0] >= 5) //5.0 ~ 2021.2
+            else if (version >= 5) //5.0 ~ 2021.2
             {
                 var m_ShaderKeywords = reader.ReadAlignedString();
             }
 
-            if (version[0] >= 5) //5.0 and up
+            if (version >= 5) //5.0 and up
             {
                 var m_LightmapFlags = reader.ReadUInt32();
             }
 
-            if (version[0] > 5 || (version[0] == 5 && version[1] >= 6)) //5.6 and up
+            if (version >= (5, 6)) //5.6 and up
             {
                 var m_EnableInstancingVariants = reader.ReadBoolean();
                 //var m_DoubleSidedGI = a_Stream.ReadBoolean(); //2017 and up
                 reader.AlignStream();
             }
 
-            if (version[0] > 4 || (version[0] == 4 && version[1] >= 3)) //4.3 and up
+            if (version >= (4, 3)) //4.3 and up
             {
                 var m_CustomRenderQueue = reader.ReadInt32();
             }
 
-            if (version[0] > 5 || (version[0] == 5 && version[1] >= 1)) //5.1 and up
+            if (version >= (5, 1)) //5.1 and up
             {
                 var stringTagMapSize = reader.ReadInt32();
                 for (int i = 0; i < stringTagMapSize; i++)
@@ -111,7 +111,7 @@ namespace AssetStudio
                 }
             }
 
-            if (version[0] > 5 || (version[0] == 5 && version[1] >= 6)) //5.6 and up
+            if (version >= (5, 6)) //5.6 and up
             {
                 var disabledShaderPasses = reader.ReadStringArray();
             }
diff --git a/AssetStudio/Classes/Mesh.cs b/AssetStudio/Classes/Mesh.cs
index e11c637..5251f7d 100644
--- a/AssetStudio/Classes/Mesh.cs
+++ b/AssetStudio/Classes/Mesh.cs
@@ -40,7 +40,7 @@ namespace AssetStudio
 
             m_Vertices = new PackedFloatVector(reader);
             m_UV = new PackedFloatVector(reader);
-            if (version[0] < 5)
+            if (version < 5)
             {
                 m_BindPoses = new PackedFloatVector(reader);
             }
@@ -49,15 +49,15 @@ namespace AssetStudio
             m_Weights = new PackedIntVector(reader);
             m_NormalSigns = new PackedIntVector(reader);
             m_TangentSigns = new PackedIntVector(reader);
-            if (version[0] >= 5)
+            if (version >= 5)
             {
                 m_FloatColors = new PackedFloatVector(reader);
             }
             m_BoneIndices = new PackedIntVector(reader);
             m_Triangles = new PackedIntVector(reader);
-            if (version[0] > 3 || (version[0] == 3 && version[1] >= 5)) //3.5 and up
+            if (version >= (3, 5)) //3.5 and up
             {
-                if (version[0] < 5)
+                if (version < 5)
                 {
                     m_Colors = new PackedIntVector(reader);
                 }
@@ -87,7 +87,7 @@ namespace AssetStudio
             channelMask = reader.ReadUInt32();
             offset = reader.ReadUInt32();
 
-            if (version[0] < 4) //4.0 down
+            if (version < 4) //4.0 down
             {
                 stride = reader.ReadUInt32();
                 align = reader.ReadUInt32();
@@ -131,14 +131,14 @@ namespace AssetStudio
         {
             var version = reader.version;
 
-            if (version[0] < 2018)//2018 down
+            if (version < 2018)//2018 down
             {
                 m_CurrentChannels = reader.ReadUInt32();
             }
 
             m_VertexCount = reader.ReadUInt32();
 
-            if (version[0] >= 4) //4.0 and up
+            if (version >= 4) //4.0 and up
             {
                 var m_ChannelsSize = reader.ReadInt32();
                 m_Channels = new ChannelInfo[m_ChannelsSize];
@@ -148,9 +148,9 @@ namespace AssetStudio
                 }
             }
 
-            if (version[0] < 5) //5.0 down
+            if (version < 5) //5.0 down
             {
-                if (version[0] < 4)
+                if (version < 4)
                 {
                     m_Streams = new StreamInfo[4];
                 }
@@ -164,7 +164,7 @@ namespace AssetStudio
                     m_Streams[i] = new StreamInfo(reader);
                 }
 
-                if (version[0] < 4) //4.0 down
+                if (version < 4) //4.0 down
                 {
                     GetChannels(version);
                 }
@@ -178,7 +178,7 @@ namespace AssetStudio
             reader.AlignStream();
         }
 
-        private void GetStreams(int[] version)
+        private void GetStreams(UnityVersion version)
         {
             var streamCount = m_Channels.Max(x => x.stream) + 1;
             m_Streams = new StreamInfo[streamCount];
@@ -213,7 +213,7 @@ namespace AssetStudio
             }
         }
 
-        private void GetChannels(int[] version)
+        private void GetChannels(UnityVersion version)
         {
             m_Channels = new ChannelInfo[6];
             for (int i = 0; i < 6; i++)
@@ -305,20 +305,20 @@ namespace AssetStudio
         {
             var version = reader.version;
 
-            if (version[0] == 4 && version[1] < 3) //4.3 down
+            if (version < (4, 3)) //4.3 down
             {
                 var name = reader.ReadAlignedString();
             }
             firstVertex = reader.ReadUInt32();
             vertexCount = reader.ReadUInt32();
-            if (version[0] == 4 && version[1] < 3) //4.3 down
+            if (version < (4, 3)) //4.3 down
             {
                 var aabbMinDelta = reader.ReadVector3();
                 var aabbMaxDelta = reader.ReadVector3();
             }
             hasNormals = reader.ReadBoolean();
             hasTangents = reader.ReadBoolean();
-            if (version[0] > 4 || (version[0] == 4 && version[1] >= 3)) //4.3 and up
+            if (version >= (4, 3)) //4.3 and up
             {
                 reader.AlignStream();
             }
@@ -352,7 +352,7 @@ namespace AssetStudio
         {
             var version = reader.version;
 
-            if (version[0] > 4 || (version[0] == 4 && version[1] >= 3)) //4.3 and up
+            if (version >= (4, 3)) //4.3 and up
             {
                 int numVerts = reader.ReadInt32();
                 vertices = new BlendShapeVertex[numVerts];
@@ -425,17 +425,17 @@ namespace AssetStudio
             indexCount = reader.ReadUInt32();
             topology = (GfxPrimitiveType)reader.ReadInt32();
 
-            if (version[0] < 4) //4.0 down
+            if (version < 4) //4.0 down
             {
                 triangleCount = reader.ReadUInt32();
             }
 
-            if (version[0] > 2017 || (version[0] == 2017 && version[1] >= 3)) //2017.3 and up
+            if (version >= (2017, 3)) //2017.3 and up
             {
                 baseVertex = reader.ReadUInt32();
             }
 
-            if (version[0] >= 3) //3.0 and up
+            if (version >= 3) //3.0 and up
             {
                 firstVertex = reader.ReadUInt32();
                 vertexCount = reader.ReadUInt32();
@@ -474,12 +474,12 @@ namespace AssetStudio
 
         public Mesh(ObjectReader reader) : base(reader)
         {
-            if (version[0] < 3 || (version[0] == 3 && version[1] < 5)) //3.5 down
+            if (version < (3, 5)) //3.5 down
             {
                 m_Use16BitIndices = reader.ReadInt32() > 0;
             }
 
-            if (version[0] == 2 && version[1] <= 5) //2.5 and down
+            if (version <= (2, 5)) //2.5 and down
             {
                 int m_IndexBuffer_size = reader.ReadInt32();
 
@@ -505,21 +505,21 @@ namespace AssetStudio
                 m_SubMeshes[i] = new SubMesh(reader);
             }
 
-            if (version[0] > 4 || (version[0] == 4 && version[1] >= 1)) //4.1 and up
+            if (version >= (4, 1)) //4.1 and up
             {
                 m_Shapes = new BlendShapeData(reader);
             }
 
-            if (version[0] > 4 || (version[0] == 4 && version[1] >= 3)) //4.3 and up
+            if (version >= (4, 3)) //4.3 and up
             {
                 m_BindPose = reader.ReadMatrixArray();
                 m_BoneNameHashes = reader.ReadUInt32Array();
                 var m_RootBoneNameHash = reader.ReadUInt32();
             }
 
-            if (version[0] > 2 || (version[0] == 2 && version[1] >= 6)) //2.6.0 and up
+            if (version >= (2, 6)) //2.6.0 and up
             {
-                if (version[0] >= 2019) //2019 and up
+                if (version >= 2019) //2019 and up
                 {
                     var m_BonesAABBSize = reader.ReadInt32();
                     var m_BonesAABB = new MinMaxAABB[m_BonesAABBSize];
@@ -532,9 +532,9 @@ namespace AssetStudio
                 }
 
                 var m_MeshCompression = reader.ReadByte();
-                if (version[0] >= 4)
+                if (version >= 4)
                 {
-                    if (version[0] < 5)
+                    if (version < 5)
                     {
                         var m_StreamCompression = reader.ReadByte();
                     }
@@ -545,9 +545,9 @@ namespace AssetStudio
                 reader.AlignStream();
 
                 //Unity fixed it in 2017.3.1p1 and later versions
-                if ((version[0] > 2017 || (version[0] == 2017 && version[1] >= 4)) || //2017.4
-                    ((version[0] == 2017 && version[1] == 3 && version[2] == 1) && buildType.IsPatch) || //fixed after 2017.3.1px
-                    ((version[0] == 2017 && version[1] == 3) && m_MeshCompression == 0))//2017.3.xfx with no compression
+                if (version >= (2017, 4) //2017.4
+                    || version == (2017, 3, 1) && buildType.IsPatch //fixed after 2017.3.1px
+                    || version == (2017, 3) && m_MeshCompression == 0)//2017.3.xfx with no compression
                 {
                     var m_IndexFormat = reader.ReadInt32();
                     m_Use16BitIndices = m_IndexFormat == 0;
@@ -569,7 +569,7 @@ namespace AssetStudio
                 }
             }
 
-            if (version[0] < 3 || (version[0] == 3 && version[1] < 5)) //3.4.2 and earlier
+            if (version < (3, 5)) //3.4.2 and earlier
             {
                 m_VertexCount = reader.ReadInt32();
                 m_Vertices = reader.ReadSingleArray(m_VertexCount * 3); //Vector3
@@ -586,7 +586,7 @@ namespace AssetStudio
 
                 m_UV1 = reader.ReadSingleArray(reader.ReadInt32() * 2); //Vector2
 
-                if (version[0] == 2 && version[1] <= 5) //2.5 and down
+                if (version <= (2, 5)) //2.5 and down
                 {
                     int m_TangentSpace_size = reader.ReadInt32();
                     m_Normals = new float[m_TangentSpace_size * 3];
@@ -611,7 +611,7 @@ namespace AssetStudio
             }
             else
             {
-                if (version[0] < 2018 || (version[0] == 2018 && version[1] < 2)) //2018.2 down
+                if (version < (2018, 2)) //2018.2 down
                 {
                     m_Skin = new BoneWeights4[reader.ReadInt32()];
                     for (int s = 0; s < m_Skin.Length; s++)
@@ -620,7 +620,7 @@ namespace AssetStudio
                     }
                 }
 
-                if (version[0] == 3 || (version[0] == 4 && version[1] <= 2)) //4.2 and down
+                if (version <= (4, 2)) //4.2 and down
                 {
                     m_BindPose = reader.ReadMatrixArray();
                 }
@@ -628,14 +628,14 @@ namespace AssetStudio
                 m_VertexData = new VertexData(reader);
             }
 
-            if (version[0] > 2 || (version[0] == 2 && version[1] >= 6)) //2.6.0 and later
+            if (version >= (2, 6)) //2.6.0 and later
             {
                 m_CompressedMesh = new CompressedMesh(reader);
             }
 
             reader.Position += 24; //AABB m_LocalAABB
 
-            if (version[0] < 3 || (version[0] == 3 && version[1] <= 4)) //3.4.2 and earlier
+            if (version <= (3, 4)) //3.4.2 and earlier
             {
                 int m_Colors_size = reader.ReadInt32();
                 m_Colors = new float[m_Colors_size * 4];
@@ -651,12 +651,12 @@ namespace AssetStudio
 
             int m_MeshUsageFlags = reader.ReadInt32();
 
-            if (version[0] > 2022 || (version[0] == 2022 && version[1] >= 1)) //2022.1 and up
+            if (version >= (2022, 1)) //2022.1 and up
             {
                 int m_CookingOptions = reader.ReadInt32();
             }
 
-            if (version[0] >= 5) //5.0 and up
+            if (version >= 5) //5.0 and up
             {
                 var m_BakedConvexCollisionMesh = reader.ReadUInt8Array();
                 reader.AlignStream();
@@ -664,14 +664,14 @@ namespace AssetStudio
                 reader.AlignStream();
             }
 
-            if (version[0] > 2018 || (version[0] == 2018 && version[1] >= 2)) //2018.2 and up
+            if (version >= (2018, 2)) //2018.2 and up
             {
                 var m_MeshMetrics = new float[2];
                 m_MeshMetrics[0] = reader.ReadSingle();
                 m_MeshMetrics[1] = reader.ReadSingle();
             }
 
-            if (version[0] > 2018 || (version[0] == 2018 && version[1] >= 3)) //2018.3 and up
+            if (version >= (2018, 3)) //2018.3 and up
             {
                 reader.AlignStream();
                 m_StreamData = new StreamingInfo(reader);
@@ -690,12 +690,12 @@ namespace AssetStudio
                     m_VertexData.m_DataSize = resourceReader.GetData();
                 }
             }
-            if (version[0] > 3 || (version[0] == 3 && version[1] >= 5)) //3.5 and up
+            if (version >= (3, 5)) //3.5 and up
             {
                 ReadVertexData();
             }
 
-            if (version[0] > 2 || (version[0] == 2 && version[1] >= 6)) //2.6.0 and later
+            if (version >= (2, 6)) //2.6.0 and later
             {
                 DecompressCompressedMesh();
             }
@@ -716,7 +716,7 @@ namespace AssetStudio
                     var channelMask = new BitArray(new[] { (int)m_Stream.channelMask });
                     if (channelMask.Get(chn))
                     {
-                        if (version[0] < 2018 && chn == 2 && m_Channel.format == 2) //kShaderChannelColor && kChannelFormatColor
+                        if (version < 2018 && chn == 2 && m_Channel.format == 2) //kShaderChannelColor && kChannelFormatColor
                         {
                             m_Channel.dimension = 4;
                         }
@@ -752,7 +752,7 @@ namespace AssetStudio
                         else
                             componentsFloatArray = MeshHelper.BytesToFloatArray(componentBytes, vertexFormat);
 
-                        if (version[0] >= 2018)
+                        if (version >= 2018)
                         {
                             switch (chn)
                             {
@@ -841,7 +841,7 @@ namespace AssetStudio
                                     m_UV1 = componentsFloatArray;
                                     break;
                                 case 5:
-                                    if (version[0] >= 5) //kShaderChannelTexCoord2
+                                    if (version >= 5) //kShaderChannelTexCoord2
                                     {
                                         m_UV2 = componentsFloatArray;
                                     }
@@ -906,7 +906,7 @@ namespace AssetStudio
                 }
             }
             //BindPose
-            if (version[0] < 5)
+            if (version < 5)
             {
                 if (m_CompressedMesh.m_BindPoses.m_NumItems > 0)
                 {
@@ -983,7 +983,7 @@ namespace AssetStudio
                 }
             }
             //FloatColor
-            if (version[0] >= 5)
+            if (version >= 5)
             {
                 if (m_CompressedMesh.m_FloatColors.m_NumItems > 0)
                 {
@@ -1074,7 +1074,7 @@ namespace AssetStudio
                         m_Indices.Add(m_IndexBuffer[firstIndex + i + 2]);
                     }
                 }
-                else if (version[0] < 4 || topology == GfxPrimitiveType.TriangleStrip)
+                else if (version < 4 || topology == GfxPrimitiveType.TriangleStrip)
                 {
                     // de-stripify :
                     uint triIndex = 0;
@@ -1238,9 +1238,9 @@ namespace AssetStudio
             SInt32
         }
 
-        public static VertexFormat ToVertexFormat(int format, int[] version)
+        public static VertexFormat ToVertexFormat(int format, UnityVersion version)
         {
-            if (version[0] < 2017)
+            if (version < 2017)
             {
                 switch ((VertexChannelFormat)format)
                 {
@@ -1258,7 +1258,7 @@ namespace AssetStudio
                         throw new ArgumentOutOfRangeException(nameof(format), format, null);
                 }
             }
-            else if (version[0] < 2019)
+            else if (version < 2019)
             {
                 switch ((VertexFormat2017)format)
                 {
diff --git a/AssetStudio/Classes/MonoScript.cs b/AssetStudio/Classes/MonoScript.cs
index cea9e89..dd9776c 100644
--- a/AssetStudio/Classes/MonoScript.cs
+++ b/AssetStudio/Classes/MonoScript.cs
@@ -13,11 +13,11 @@ namespace AssetStudio
 
         public MonoScript(ObjectReader reader) : base(reader)
         {
-            if (version[0] > 3 || (version[0] == 3 && version[1] >= 4)) //3.4 and up
+            if (version >= (3, 4)) //3.4 and up
             {
                 var m_ExecutionOrder = reader.ReadInt32();
             }
-            if (version[0] < 5) //5.0 down
+            if (version < 5) //5.0 down
             {
                 var m_PropertiesHash = reader.ReadUInt32();
             }
@@ -25,17 +25,17 @@ namespace AssetStudio
             {
                 var m_PropertiesHash = reader.ReadBytes(16);
             }
-            if (version[0] < 3) //3.0 down
+            if (version < 3) //3.0 down
             {
                 var m_PathName = reader.ReadAlignedString();
             }
             m_ClassName = reader.ReadAlignedString();
-            if (version[0] >= 3) //3.0 and up
+            if (version >= 3) //3.0 and up
             {
                 m_Namespace = reader.ReadAlignedString();
             }
             m_AssemblyName = reader.ReadAlignedString();
-            if (version[0] < 2018 || (version[0] == 2018 && version[1] < 2)) //2018.2 down
+            if (version < (2018, 2)) //2018.2 down
             {
                 var m_IsEditorScript = reader.ReadBoolean();
             }
diff --git a/AssetStudio/Classes/Object.cs b/AssetStudio/Classes/Object.cs
index 44ea063..8a58bbe 100644
--- a/AssetStudio/Classes/Object.cs
+++ b/AssetStudio/Classes/Object.cs
@@ -11,7 +11,7 @@ namespace AssetStudio
         public ObjectReader reader;
         public long m_PathID;
         [JsonIgnore]
-        public int[] version;
+        public UnityVersion version;
         protected BuildType buildType;
         [JsonIgnore]
         public BuildTarget platform;
diff --git a/AssetStudio/Classes/PlayerSettings.cs b/AssetStudio/Classes/PlayerSettings.cs
index 245385b..c5168c8 100644
--- a/AssetStudio/Classes/PlayerSettings.cs
+++ b/AssetStudio/Classes/PlayerSettings.cs
@@ -12,7 +12,7 @@ namespace AssetStudio
 
         public PlayerSettings(ObjectReader reader) : base(reader)
         {
-            if (version[0] > 5 || (version[0] == 5 && version[1] >= 4)) //5.4.0 nad up
+            if (version >= (5, 4)) //5.4.0 and up
             {
                 var productGUID = reader.ReadBytes(16);
             }
@@ -23,12 +23,12 @@ namespace AssetStudio
             reader.AlignStream();
             int defaultScreenOrientation = reader.ReadInt32();
             int targetDevice = reader.ReadInt32();
-            if (version[0] < 5 || (version[0] == 5 && version[1] < 3)) //5.3 down
+            if (version < (5, 3)) //5.3 down
             {
-                if (version[0] < 5) //5.0 down
+                if (version < 5) //5.0 down
                 {
                     int targetPlatform = reader.ReadInt32(); //4.0 and up targetGlesGraphics
-                    if (version[0] > 4 || (version[0] == 4 && version[1] >= 6)) //4.6 and up
+                    if (version >= (4, 6)) //4.6 and up
                     {
                         var targetIOSGraphics = reader.ReadInt32();
                     }
@@ -40,7 +40,7 @@ namespace AssetStudio
                 var useOnDemandResources = reader.ReadBoolean();
                 reader.AlignStream();
             }
-            if (version[0] > 3 || (version[0] == 3 && version[1] >= 5)) //3.5 and up
+            if (version >= (3, 5)) //3.5 and up
             {
                 var accelerometerFrequency = reader.ReadInt32();
             }
diff --git a/AssetStudio/Classes/Renderer.cs b/AssetStudio/Classes/Renderer.cs
index 2899db0..a62f6d5 100644
--- a/AssetStudio/Classes/Renderer.cs
+++ b/AssetStudio/Classes/Renderer.cs
@@ -25,7 +25,7 @@ namespace AssetStudio
 
         protected Renderer(ObjectReader reader) : base(reader)
         {
-            if (version[0] < 5) //5.0 down
+            if (version < 5) //5.0 down
             {
                 var m_Enabled = reader.ReadBoolean();
                 var m_CastShadows = reader.ReadBoolean();
@@ -34,27 +34,27 @@ namespace AssetStudio
             }
             else //5.0 and up
             {
-                if (version[0] > 5 || (version[0] == 5 && version[1] >= 4)) //5.4 and up
+                if (version >= (5, 4)) //5.4 and up
                 {
                     var m_Enabled = reader.ReadBoolean();
                     var m_CastShadows = reader.ReadByte();
                     var m_ReceiveShadows = reader.ReadByte();
-                    if (version[0] > 2017 || (version[0] == 2017 && version[1] >= 2)) //2017.2 and up
+                    if (version >= (2017, 2)) //2017.2 and up
                     {
                         var m_DynamicOccludee = reader.ReadByte();
                     }
-                    if (version[0] >= 2021) //2021.1 and up
+                    if (version >= 2021) //2021.1 and up
                     {
                         var m_StaticShadowCaster = reader.ReadByte();
                     }
                     var m_MotionVectors = reader.ReadByte();
                     var m_LightProbeUsage = reader.ReadByte();
                     var m_ReflectionProbeUsage = reader.ReadByte();
-                    if (version[0] > 2019 || (version[0] == 2019 && version[1] >= 3)) //2019.3 and up
+                    if (version >= (2019, 3)) //2019.3 and up
                     {
                         var m_RayTracingMode = reader.ReadByte();
                     }
-                    if (version[0] >= 2020) //2020.1 and up
+                    if (version >= 2020) //2020.1 and up
                     {
                         var m_RayTraceProcedural = reader.ReadByte();
                     }
@@ -69,12 +69,12 @@ namespace AssetStudio
                     reader.AlignStream();
                 }
 
-                if (version[0] >= 2018) //2018 and up
+                if (version >= 2018) //2018 and up
                 {
                     var m_RenderingLayerMask = reader.ReadUInt32();
                 }
 
-                if (version[0] > 2018 || (version[0] == 2018 && version[1] >= 3)) //2018.3 and up
+                if (version >= (2018, 3)) //2018.3 and up
                 {
                     var m_RendererPriority = reader.ReadInt32();
                 }
@@ -83,12 +83,12 @@ namespace AssetStudio
                 var m_LightmapIndexDynamic = reader.ReadUInt16();
             }
 
-            if (version[0] >= 3) //3.0 and up
+            if (version >= 3) //3.0 and up
             {
                 var m_LightmapTilingOffset = reader.ReadVector4();
             }
 
-            if (version[0] >= 5) //5.0 and up
+            if (version >= 5) //5.0 and up
             {
                 var m_LightmapTilingOffsetDynamic = reader.ReadVector4();
             }
@@ -100,13 +100,13 @@ namespace AssetStudio
                 m_Materials[i] = new PPtr<Material>(reader);
             }
 
-            if (version[0] < 3) //3.0 down
+            if (version < 3) //3.0 down
             {
                 var m_LightmapTilingOffset = reader.ReadVector4();
             }
             else //3.0 and up
             {
-                if (version[0] > 5 || (version[0] == 5 && version[1] >= 5)) //5.5 and up
+                if (version >= (5, 5)) //5.5 and up
                 {
                     m_StaticBatchInfo = new StaticBatchInfo(reader);
                 }
@@ -118,17 +118,17 @@ namespace AssetStudio
                 var m_StaticBatchRoot = new PPtr<Transform>(reader);
             }
 
-            if (version[0] > 5 || (version[0] == 5 && version[1] >= 4)) //5.4 and up
+            if (version >= (5, 4)) //5.4 and up
             {
                 var m_ProbeAnchor = new PPtr<Transform>(reader);
                 var m_LightProbeVolumeOverride = new PPtr<GameObject>(reader);
             }
-            else if (version[0] > 3 || (version[0] == 3 && version[1] >= 5)) //3.5 - 5.3
+            else if (version >= (3, 5)) //3.5 - 5.3
             {
                 var m_UseLightProbes = reader.ReadBoolean();
                 reader.AlignStream();
 
-                if (version[0] >= 5)//5.0 and up
+                if (version >= 5)//5.0 and up
                 {
                     var m_ReflectionProbeUsage = reader.ReadInt32();
                 }
@@ -136,9 +136,9 @@ namespace AssetStudio
                 var m_LightProbeAnchor = new PPtr<Transform>(reader); //5.0 and up m_ProbeAnchor
             }
 
-            if (version[0] > 4 || (version[0] == 4 && version[1] >= 3)) //4.3 and up
+            if (version >= (4, 3)) //4.3 and up
             {
-                if (version[0] == 4 && version[1] == 3) //4.3
+                if (version == (4, 3)) //4.3
                 {
                     var m_SortingLayer = reader.ReadInt16();
                 }
diff --git a/AssetStudio/Classes/Shader.cs b/AssetStudio/Classes/Shader.cs
index e0fbc41..f92aa78 100644
--- a/AssetStudio/Classes/Shader.cs
+++ b/AssetStudio/Classes/Shader.cs
@@ -243,14 +243,14 @@ namespace AssetStudio
             }
             rtSeparateBlend = reader.ReadBoolean();
             reader.AlignStream();
-            if (version[0] > 2017 || (version[0] == 2017 && version[1] >= 2)) //2017.2 and up
+            if (version >= (2017, 2)) //2017.2 and up
             {
                 zClip = new SerializedShaderFloatValue(reader);
             }
             zTest = new SerializedShaderFloatValue(reader);
             zWrite = new SerializedShaderFloatValue(reader);
             culling = new SerializedShaderFloatValue(reader);
-            if (version[0] >= 2020) //2020.1 and up
+            if (version >= 2020) //2020.1 and up
             {
                 conservative = new SerializedShaderFloatValue(reader);
             }
@@ -359,7 +359,7 @@ namespace AssetStudio
             m_NameIndex = reader.ReadInt32();
             m_Index = reader.ReadInt32();
             m_SamplerIndex = reader.ReadInt32();
-            if (version[0] > 2017 || (version[0] == 2017 && version[1] >= 3)) //2017.3 and up
+            if (version >= (2017, 3)) //2017.3 and up
             {
                 var m_MultiSampled = reader.ReadBoolean();
             }
@@ -380,7 +380,7 @@ namespace AssetStudio
 
             m_NameIndex = reader.ReadInt32();
             m_Index = reader.ReadInt32();
-            if (version[0] >= 2020) //2020.1 and up
+            if (version >= 2020) //2020.1 and up
             {
                 m_ArraySize = reader.ReadInt32();
             }
@@ -415,7 +415,7 @@ namespace AssetStudio
             {
                 m_VectorParams[i] = new VectorParameter(reader);
             }
-            if (version[0] > 2017 || (version[0] == 2017 && version[1] >= 3)) //2017.3 and up
+            if (version >= (2017, 3)) //2017.3 and up
             {
                 int numStructParams = reader.ReadInt32();
                 m_StructParams = new StructParameter[numStructParams];
@@ -426,11 +426,8 @@ namespace AssetStudio
             }
             m_Size = reader.ReadInt32();
 
-            if ((version[0] == 2020 && version[1] > 3) ||
-               (version[0] == 2020 && version[1] == 3 && version[2] >= 2) || //2020.3.2f1 and up
-               (version[0] > 2021) ||
-               (version[0] == 2021 && version[1] > 1) ||
-               (version[0] == 2021 && version[1] == 1 && version[2] >= 4)) //2021.1.4f1 and up
+            if (version.IsInRange((2020, 3, 2), 2021) //2020.3.2f1 and up
+                || version >= (2021, 1, 4)) //2021.1.4f1 and up
             {
                 m_IsPartialCB = reader.ReadBoolean();
                 reader.AlignStream();
@@ -584,7 +581,7 @@ namespace AssetStudio
             m_BlobIndex = reader.ReadUInt32();
             m_Channels = new ParserBindChannels(reader);
 
-            if ((version[0] >= 2019 && version[0] < 2021) || (version[0] == 2021 && version[1] < 2)) //2019 ~2021.1
+            if (version.IsInRange(2019, (2021, 2))) //2019 ~2021.1
             {
                 var m_GlobalKeywordIndices = reader.ReadUInt16Array();
                 reader.AlignStream();
@@ -594,7 +591,7 @@ namespace AssetStudio
             else
             {
                 m_KeywordIndices = reader.ReadUInt16Array();
-                if (version[0] >= 2017) //2017 and up
+                if (version >= 2017) //2017 and up
                 {
                     reader.AlignStream();
                 }
@@ -604,11 +601,8 @@ namespace AssetStudio
             m_GpuProgramType = (ShaderGpuProgramType)reader.ReadSByte();
             reader.AlignStream();
 
-            if ((version[0] == 2020 && version[1] > 3) ||
-               (version[0] == 2020 && version[1] == 3 && version[2] >= 2) || //2020.3.2f1 and up
-               (version[0] > 2021) ||
-               (version[0] == 2021 && version[1] > 1) ||
-               (version[0] == 2021 && version[1] == 1 && version[2] >= 1)) //2021.1.1f1 and up
+            if (version.IsInRange((2020, 3, 2), 2021) //2020.3.2f1 and up
+                || version >= (2021, 1, 1)) //2021.1.1f1 and up
             {
                 m_Parameters = new SerializedProgramParameters(reader);
             }
@@ -663,7 +657,7 @@ namespace AssetStudio
                     m_UAVParams[i] = new UAVParameter(reader);
                 }
 
-                if (version[0] >= 2017) //2017 and up
+                if (version >= 2017) //2017 and up
                 {
                     int numSamplers = reader.ReadInt32();
                     m_Samplers = new SamplerParameter[numSamplers];
@@ -674,9 +668,9 @@ namespace AssetStudio
                 }
             }
 
-            if (version[0] > 2017 || (version[0] == 2017 && version[1] >= 2)) //2017.2 and up
+            if (version >= (2017, 2)) //2017.2 and up
             {
-                if (version[0] >= 2021) //2021.1 and up
+                if (version >= 2021) //2021.1 and up
                 {
                     var m_ShaderRequirements = reader.ReadInt64();
                 }
@@ -705,16 +699,13 @@ namespace AssetStudio
                 m_SubPrograms[i] = new SerializedSubProgram(reader);
             }
 
-            if ((version[0] == 2020 && version[1] > 3) ||
-               (version[0] == 2020 && version[1] == 3 && version[2] >= 2) || //2020.3.2f1 and up
-               (version[0] > 2021) ||
-               (version[0] == 2021 && version[1] > 1) ||
-               (version[0] == 2021 && version[1] == 1 && version[2] >= 1)) //2021.1.1f1 and up
+            if (version.IsInRange((2020, 3, 2), 2021) //2020.3.2f1 and up
+                || version >= (2021, 1, 1)) //2021.1.1f1 and up
             {
                 m_CommonParameters = new SerializedProgramParameters(reader);
             }
 
-            if (version[0] > 2022 || (version[0] == 2022 && version[1] >= 1)) //2022.1 and up
+            if (version >= (2022, 1)) //2022.1 and up
             {
                 m_SerializedKeywordStateMask = reader.ReadUInt16Array();
                 reader.AlignStream();
@@ -756,7 +747,7 @@ namespace AssetStudio
         {
             var version = reader.version;
 
-            if (version[0] > 2020 || (version[0] == 2020 && version[1] >= 2)) //2020.2 and up
+            if (version >= (2020, 2)) //2020.2 and up
             {
                 int numEditorDataHash = reader.ReadInt32();
                 m_EditorDataHash = new Hash128[numEditorDataHash];
@@ -767,7 +758,7 @@ namespace AssetStudio
                 reader.AlignStream();
                 m_Platforms = reader.ReadUInt8Array();
                 reader.AlignStream();
-                if (version[0] < 2021 || (version[0] == 2021 && version[1] < 2)) //2021.1 and down
+                if (version <= (2021, 1)) //2021.1 and down
                 {
                     m_LocalKeywordMask = reader.ReadUInt16Array();
                     reader.AlignStream();
@@ -791,12 +782,12 @@ namespace AssetStudio
             progGeometry = new SerializedProgram(reader);
             progHull = new SerializedProgram(reader);
             progDomain = new SerializedProgram(reader);
-            if (version[0] > 2019 || (version[0] == 2019 && version[1] >= 3)) //2019.3 and up
+            if (version >= (2019, 3)) //2019.3 and up
             {
                 progRayTracing = new SerializedProgram(reader);
             }
             m_HasInstancingVariant = reader.ReadBoolean();
-            if (version[0] >= 2018) //2018 and up
+            if (version >= 2018) //2018 and up
             {
                 var m_HasProceduralInstancingVariant = reader.ReadBoolean();
             }
@@ -805,7 +796,7 @@ namespace AssetStudio
             m_Name = reader.ReadAlignedString();
             m_TextureName = reader.ReadAlignedString();
             m_Tags = new SerializedTagMap(reader);
-            if (version[0] == 2021 && version[1] >= 2) //2021.2 ~2021.x
+            if (version == 2021 && version.Minor >= 2) //2021.2 ~2021.x
             {
                 m_SerializedKeywordStateMask = reader.ReadUInt16Array();
                 reader.AlignStream();
@@ -898,7 +889,7 @@ namespace AssetStudio
                 m_SubShaders[i] = new SerializedSubShader(reader);
             }
 
-            if (version[0] > 2021 || (version[0] == 2021 && version[1] >= 2)) //2021.2 and up
+            if (version >= (2021, 2)) //2021.2 and up
             {
                 m_KeywordNames = reader.ReadStringArray();
                 m_KeywordFlags = reader.ReadUInt8Array();
@@ -916,7 +907,7 @@ namespace AssetStudio
                 m_Dependencies[i] = new SerializedShaderDependency(reader);
             }
 
-            if (version[0] >= 2021) //2021.1 and up
+            if (version >= 2021) //2021.1 and up
             {
                 int m_CustomEditorForRenderPipelinesSize = reader.ReadInt32();
                 m_CustomEditorForRenderPipelines = new SerializedCustomEditorForRenderPipeline[m_CustomEditorForRenderPipelinesSize];
@@ -977,11 +968,11 @@ namespace AssetStudio
 
         public Shader(ObjectReader reader) : base(reader)
         {
-            if (version[0] == 5 && version[1] >= 5 || version[0] > 5) //5.5 and up
+            if (version >= (5, 5)) //5.5 and up
             {
                 m_ParsedForm = new SerializedShader(reader);
                 platforms = reader.ReadUInt32Array().Select(x => (ShaderCompilerPlatform)x).ToArray();
-                if (version[0] > 2019 || (version[0] == 2019 && version[1] >= 3)) //2019.3 and up
+                if (version >= (2019, 3)) //2019.3 and up
                 {
                     offsets = reader.ReadUInt32ArrayArray();
                     compressedLengths = reader.ReadUInt32ArrayArray();
@@ -1002,7 +993,7 @@ namespace AssetStudio
                     new PPtr<Shader>(reader);
                 }
 
-                if (version[0] >= 2018)
+                if (version >= 2018)
                 {
                     var m_NonModifiableTexturesCount = reader.ReadInt32();
                     for (int i = 0; i < m_NonModifiableTexturesCount; i++)
@@ -1020,7 +1011,7 @@ namespace AssetStudio
                 m_Script = reader.ReadUInt8Array();
                 reader.AlignStream();
                 var m_PathName = reader.ReadAlignedString();
-                if (version[0] == 5 && version[1] >= 3) //5.3 - 5.4
+                if (version == 5 && version.Minor >= 3) //5.3 - 5.4
                 {
                     decompressedSize = reader.ReadUInt32();
                     m_SubProgramBlob = reader.ReadUInt8Array();
diff --git a/AssetStudio/Classes/SkinnedMeshRenderer.cs b/AssetStudio/Classes/SkinnedMeshRenderer.cs
index d45f29e..000de6a 100644
--- a/AssetStudio/Classes/SkinnedMeshRenderer.cs
+++ b/AssetStudio/Classes/SkinnedMeshRenderer.cs
@@ -18,7 +18,7 @@ namespace AssetStudio
             var m_SkinNormals = reader.ReadBoolean(); //3.1.0 and below
             reader.AlignStream();
 
-            if (version[0] == 2 && version[1] < 6) //2.6 down
+            if (version < (2, 6)) //2.6 down
             {
                 var m_DisableAnimationWhenOffscreen = new PPtr<Animation>(reader);
             }
@@ -31,7 +31,7 @@ namespace AssetStudio
                 m_Bones[b] = new PPtr<Transform>(reader);
             }
 
-            if (version[0] > 4 || (version[0] == 4 && version[1] >= 3)) //4.3 and up
+            if (version >= (4, 3)) //4.3 and up
             {
                 m_BlendShapeWeights = reader.ReadSingleArray();
             }
diff --git a/AssetStudio/Classes/Sprite.cs b/AssetStudio/Classes/Sprite.cs
index 2e597e6..6f5eaa4 100644
--- a/AssetStudio/Classes/Sprite.cs
+++ b/AssetStudio/Classes/Sprite.cs
@@ -68,7 +68,7 @@ namespace AssetStudio
             var version = reader.version;
 
             pos = reader.ReadVector3();
-            if (version[0] < 4 || (version[0] == 4 && version[1] <= 3)) //4.3 and down
+            if (version <= (4, 3)) //4.3 and down
             {
                 uv = reader.ReadVector2();
             }
@@ -99,12 +99,12 @@ namespace AssetStudio
             var version = reader.version;
 
             texture = new PPtr<Texture2D>(reader);
-            if (version[0] > 5 || (version[0] == 5 && version[1] >= 2)) //5.2 and up
+            if (version >= (5, 2)) //5.2 and up
             {
                 alphaTexture = new PPtr<Texture2D>(reader);
             }
 
-            if (version[0] >= 2019) //2019 and up
+            if (version >= 2019) //2019 and up
             {
                 var secondaryTexturesSize = reader.ReadInt32();
                 secondaryTextures = new SecondarySpriteTexture[secondaryTexturesSize];
@@ -114,7 +114,7 @@ namespace AssetStudio
                 }
             }
 
-            if (version[0] > 5 || (version[0] == 5 && version[1] >= 6)) //5.6 and up
+            if (version >= (5, 6)) //5.6 and up
             {
                 var m_SubMeshesSize = reader.ReadInt32();
                 m_SubMeshes = new SubMesh[m_SubMeshesSize];
@@ -141,11 +141,11 @@ namespace AssetStudio
                 reader.AlignStream();
             }
 
-            if (version[0] >= 2018) //2018 and up
+            if (version >= 2018) //2018 and up
             {
                 m_Bindpose = reader.ReadMatrixArray();
 
-                if (version[0] == 2018 && version[1] < 2) //2018.2 down
+                if (version < (2018, 2)) //2018.2 down
                 {
                     var m_SourceSkinSize = reader.ReadInt32();
                     for (int i = 0; i < m_SourceSkinSize; i++)
@@ -157,18 +157,18 @@ namespace AssetStudio
 
             textureRect = new Rectf(reader);
             textureRectOffset = reader.ReadVector2();
-            if (version[0] > 5 || (version[0] == 5 && version[1] >= 6)) //5.6 and up
+            if (version >= (5, 6)) //5.6 and up
             {
                 atlasRectOffset = reader.ReadVector2();
             }
 
             settingsRaw = new SpriteSettings(reader);
-            if (version[0] > 4 || (version[0] == 4 && version[1] >= 5)) //4.5 and up
+            if (version >= (4, 5)) //4.5 and up
             {
                 uvTransform = reader.ReadVector4();
             }
 
-            if (version[0] >= 2017) //2017 and up
+            if (version >= 2017) //2017 and up
             {
                 downscaleMultiplier = reader.ReadSingle();
             }
@@ -210,28 +210,26 @@ namespace AssetStudio
         {
             m_Rect = new Rectf(reader);
             m_Offset = reader.ReadVector2();
-            if (version[0] > 4 || (version[0] == 4 && version[1] >= 5)) //4.5 and up
+            if (version >= (4, 5)) //4.5 and up
             {
                 m_Border = reader.ReadVector4();
             }
 
             m_PixelsToUnits = reader.ReadSingle();
-            if (version[0] > 5
-                || (version[0] == 5 && version[1] > 4)
-                || (version[0] == 5 && version[1] == 4 && version[2] >= 2)
-                || (version[0] == 5 && version[1] == 4 && version[2] == 1 && buildType.IsPatch && version[3] >= 3)) //5.4.1p3 and up
+            if (version >= (5, 4, 2)
+                || version == (5, 4, 1) && buildType.IsPatch && version.Build >= 3) //5.4.1p3 and up
             {
                 m_Pivot = reader.ReadVector2();
             }
 
             m_Extrude = reader.ReadUInt32();
-            if (version[0] > 5 || (version[0] == 5 && version[1] >= 3)) //5.3 and up
+            if (version >= (5, 3)) //5.3 and up
             {
                 m_IsPolygon = reader.ReadBoolean();
                 reader.AlignStream();
             }
 
-            if (version[0] >= 2017) //2017 and up
+            if (version >= 2017) //2017 and up
             {
                 var first = new Guid(reader.ReadBytes(16));
                 var second = reader.ReadInt64();
@@ -244,7 +242,7 @@ namespace AssetStudio
 
             m_RD = new SpriteRenderData(reader);
 
-            if (version[0] >= 2017) //2017 and up
+            if (version >= 2017) //2017 and up
             {
                 var m_PhysicsShapeSize = reader.ReadInt32();
                 m_PhysicsShape = new Vector2[m_PhysicsShapeSize][];
diff --git a/AssetStudio/Classes/SpriteAtlas.cs b/AssetStudio/Classes/SpriteAtlas.cs
index c1a97c5..dfe34a5 100644
--- a/AssetStudio/Classes/SpriteAtlas.cs
+++ b/AssetStudio/Classes/SpriteAtlas.cs
@@ -22,14 +22,14 @@ namespace AssetStudio
             alphaTexture = new PPtr<Texture2D>(reader);
             textureRect = new Rectf(reader);
             textureRectOffset = reader.ReadVector2();
-            if (version[0] > 2017 || (version[0] == 2017 && version[1] >= 2)) //2017.2 and up
+            if (version >= (2017, 2)) //2017.2 and up
             {
                 atlasRectOffset = reader.ReadVector2();
             }
             uvTransform = reader.ReadVector4();
             downscaleMultiplier = reader.ReadSingle();
             settingsRaw = new SpriteSettings(reader);
-            if (version[0] > 2020 || (version[0] == 2020 && version[1] >= 2)) //2020.2 and up
+            if (version >= (2020, 2)) //2020.2 and up
             {
                 var secondaryTexturesSize = reader.ReadInt32();
                 secondaryTextures = new SecondarySpriteTexture[secondaryTexturesSize];
diff --git a/AssetStudio/Classes/StreamingInfo.cs b/AssetStudio/Classes/StreamingInfo.cs
index 535621b..a78a2a2 100644
--- a/AssetStudio/Classes/StreamingInfo.cs
+++ b/AssetStudio/Classes/StreamingInfo.cs
@@ -12,7 +12,7 @@
         {
             var version = reader.version;
 
-            if (version[0] >= 2020) //2020.1 and up
+            if (version >= 2020) //2020.1 and up
             {
                 offset = reader.ReadInt64();
             }
diff --git a/AssetStudio/Classes/Texture.cs b/AssetStudio/Classes/Texture.cs
index 42f3f5f..43c2608 100644
--- a/AssetStudio/Classes/Texture.cs
+++ b/AssetStudio/Classes/Texture.cs
@@ -6,15 +6,15 @@
 
         protected Texture(ObjectReader reader) : base(reader)
         {
-            if (version[0] > 2017 || (version[0] == 2017 && version[1] >= 3)) //2017.3 and up
+            if (version >= (2017, 3)) //2017.3 and up
             {
-                if (version[0] < 2023 || (version[0] == 2023 && version[1] < 2)) //2023.2 down
+                if (version < (2023, 2)) //2023.2 down
                 {
                     var m_ForcedFallbackFormat = reader.ReadInt32();
                     var m_DownscaleFallback = reader.ReadBoolean();
                 }
 
-                if (version[0] > 2020 || (version[0] == 2020 && version[1] >= 2)) //2020.2 and up
+                if (version >= (2020, 2)) //2020.2 and up
                 {
                     var m_IsAlphaChannelOptional = reader.ReadBoolean();
                 }
diff --git a/AssetStudio/Classes/Texture2D.cs b/AssetStudio/Classes/Texture2D.cs
index b21d5fc..74a4a55 100644
--- a/AssetStudio/Classes/Texture2D.cs
+++ b/AssetStudio/Classes/Texture2D.cs
@@ -78,12 +78,12 @@ namespace AssetStudio
             m_Width = reader.ReadInt32();
             m_Height = reader.ReadInt32();
             m_CompleteImageSize = reader.ReadInt32();
-            if (version[0] >= 2020) //2020.1 and up
+            if (version >= 2020) //2020.1 and up
             {
                 var m_MipsStripped = reader.ReadInt32();
             }
             m_TextureFormat = (TextureFormat)reader.ReadInt32();
-            if (version[0] < 5 || (version[0] == 5 && version[1] < 2)) //5.2 down
+            if (version < (5, 2)) //5.2 down
             {
                 m_MipMap = reader.ReadBoolean();
             }
@@ -91,17 +91,17 @@ namespace AssetStudio
             {
                 m_MipCount = reader.ReadInt32();
             }
-            if (version[0] > 2 || (version[0] == 2 && version[1] >= 6)) //2.6.0 and up
+            if (version >= (2, 6)) //2.6.0 and up
             {
                 var m_IsReadable = reader.ReadBoolean();
             }
-            if (version[0] >= 2020) //2020.1 and up
+            if (version >= 2020) //2020.1 and up
             {
                 var m_IsPreProcessed = reader.ReadBoolean();
             }
-            if (version[0] > 2019 || (version[0] == 2019 && version[1] >= 3)) //2019.3 and up
+            if (version >= (2019, 3)) //2019.3 and up
             {
-                if (version[0] > 2022 || (version[0] == 2022 && version[1] >= 2)) //2022.2 and up
+                if (version >= (2022, 2)) //2022.2 and up
                 {
                     var m_IgnoreMipmapLimit = reader.ReadBoolean();
                     reader.AlignStream();
@@ -111,38 +111,35 @@ namespace AssetStudio
                     var m_IgnoreMasterTextureLimit = reader.ReadBoolean();
                 }
             }
-            if (version[0] >= 3) //3.0.0 - 5.4
+            if (version.IsInRange(3, (5, 5))) //3.0.0 - 5.4
             {
-                if (version[0] < 5 || (version[0] == 5 && version[1] <= 4))
-                {
-                    var m_ReadAllowed = reader.ReadBoolean();
-                }
+                var m_ReadAllowed = reader.ReadBoolean();
             }
-            if (version[0] > 2022 || (version[0] == 2022 && version[1] >= 2)) //2022.2 and up
+            if (version >= (2022, 2)) //2022.2 and up
             {
                 var m_MipmapLimitGroupName = reader.ReadAlignedString();
             }
-            if (version[0] > 2018 || (version[0] == 2018 && version[1] >= 2)) //2018.2 and up
+            if (version >= (2018, 2)) //2018.2 and up
             {
                 var m_StreamingMipmaps = reader.ReadBoolean();
             }
             reader.AlignStream();
-            if (version[0] > 2018 || (version[0] == 2018 && version[1] >= 2)) //2018.2 and up
+            if (version >= (2018, 2)) //2018.2 and up
             {
                 var m_StreamingMipmapsPriority = reader.ReadInt32();
             }
             m_ImageCount = reader.ReadInt32();
             var m_TextureDimension = reader.ReadInt32();
             m_TextureSettings = new GLTextureSettings(reader);
-            if (version[0] >= 3) //3.0 and up
+            if (version >= 3) //3.0 and up
             {
                 var m_LightmapFormat = reader.ReadInt32();
             }
-            if (version[0] > 3 || (version[0] == 3 && version[1] >= 5)) //3.5.0 and up
+            if (version >= (3, 5)) //3.5.0 and up
             {
                 var m_ColorSpace = reader.ReadInt32();
             }
-            if (version[0] > 2020 || (version[0] == 2020 && version[1] >= 2)) //2020.2 and up
+            if (version >= (2020, 2)) //2020.2 and up
             {
                 m_PlatformBlob = reader.ReadUInt8Array();
                 reader.AlignStream();
@@ -152,7 +149,7 @@ namespace AssetStudio
                 m_PlatformBlob = Array.Empty<byte>();
             }
             var image_data_size = reader.ReadInt32();
-            if (image_data_size == 0 && ((version[0] == 5 && version[1] >= 3) || version[0] > 5))//5.3.0 and up
+            if (image_data_size == 0 && version >= (5, 3))//5.3.0 and up
             {
                 m_StreamData = new StreamingInfo(reader);
             }
diff --git a/AssetStudio/Classes/Texture2DArray.cs b/AssetStudio/Classes/Texture2DArray.cs
index 59fcca5..4d3070f 100644
--- a/AssetStudio/Classes/Texture2DArray.cs
+++ b/AssetStudio/Classes/Texture2DArray.cs
@@ -30,7 +30,7 @@ namespace AssetStudio
             m_MipCount = reader.ReadInt32();
             m_DataSize = reader.ReadUInt32();
             m_TextureSettings = new GLTextureSettings(reader);
-            if (version[0] > 2020 || (version[0] == 2020 && version[1] >= 2)) //2020.2 and up
+            if (version >= (2020, 2)) //2020.2 and up
             {
                 var m_UsageMode = reader.ReadInt32();
             }
diff --git a/AssetStudio/Classes/VideoClip.cs b/AssetStudio/Classes/VideoClip.cs
index d29ce0f..bd73648 100644
--- a/AssetStudio/Classes/VideoClip.cs
+++ b/AssetStudio/Classes/VideoClip.cs
@@ -34,7 +34,7 @@ namespace AssetStudio
             var m_ProxyHeight = reader.ReadUInt32();
             Width = reader.ReadUInt32();
             Height = reader.ReadUInt32();
-            if (version[0] > 2017 || (version[0] == 2017 && version[1] >= 2)) //2017.2 and up
+            if (version >= (2017, 2)) //2017.2 and up
             {
                 var m_PixelAspecRatioNum = reader.ReadUInt32();
                 var m_PixelAspecRatioDen = reader.ReadUInt32();
@@ -46,7 +46,7 @@ namespace AssetStudio
             reader.AlignStream();
             var m_AudioSampleRate = reader.ReadUInt32Array();
             var m_AudioLanguage = reader.ReadStringArray();
-            if (version[0] >= 2020) //2020.1 and up
+            if (version >= 2020) //2020.1 and up
             {
                 var m_VideoShadersSize = reader.ReadInt32();
                 var m_VideoShaders = new PPtr<Shader>[m_VideoShadersSize];
@@ -57,7 +57,7 @@ namespace AssetStudio
             }
             m_ExternalResources = new StreamedResource(reader);
             m_HasSplitAlpha = reader.ReadBoolean();
-            if (version[0] >= 2020) //2020.1 and up
+            if (version >= 2020) //2020.1 and up
             {
                 var m_sRGB = reader.ReadBoolean();
             }
diff --git a/AssetStudio/ObjectReader.cs b/AssetStudio/ObjectReader.cs
index deb253b..d0580db 100644
--- a/AssetStudio/ObjectReader.cs
+++ b/AssetStudio/ObjectReader.cs
@@ -17,7 +17,7 @@ namespace AssetStudio
         public BuildTarget platform;
         public SerializedFileFormatVersion m_Version;
 
-        public int[] version => assetsFile.version;
+        public UnityVersion version => assetsFile.version;
         public BuildType buildType => assetsFile.buildType;
 
         public ObjectReader(EndianBinaryReader reader, SerializedFile assetsFile, ObjectInfo objectInfo) : base(reader.BaseStream, reader.Endian)
diff --git a/AssetStudio/SerializedFile.cs b/AssetStudio/SerializedFile.cs
index 43fc660..e1b26c6 100644
--- a/AssetStudio/SerializedFile.cs
+++ b/AssetStudio/SerializedFile.cs
@@ -13,7 +13,7 @@ namespace AssetStudio
         public string fullName;
         public string originalPath;
         public string fileName;
-        public int[] version = { 0, 0, 0, 0 };
+        public UnityVersion version = new UnityVersion();
         public BuildType buildType;
         public List<Object> Objects;
         public Dictionary<long, Object> ObjectsDic;
@@ -73,7 +73,7 @@ namespace AssetStudio
             if (header.m_Version >= SerializedFileFormatVersion.Unknown_7)
             {
                 unityVersion = reader.ReadStringToNull();
-                SetVersion(unityVersion);
+                SetVersion(new UnityVersion(unityVersion));
             }
             if (header.m_Version >= SerializedFileFormatVersion.Unknown_8)
             {
@@ -217,19 +217,13 @@ namespace AssetStudio
             //reader.AlignStream(16);
         }
 
-        public void SetVersion(string stringVersion)
+        public void SetVersion(UnityVersion unityVer)
         {
-            if (stringVersion != strippedVersion)
+            if (unityVer != null && !unityVer.IsStripped)
             {
-                unityVersion = stringVersion;
-                var buildSplit = Regex.Replace(stringVersion, @"\d", "").Split(new[] { "." }, StringSplitOptions.RemoveEmptyEntries);
-                if (buildSplit.Length == 0)
-                    throw new NotSupportedException("Specified Unity version is not in a correct format.\n" +
-                        "Specify full Unity version, including letters at the end.\n" +
-                        "Example: 2017.4.39f1");
-                buildType = new BuildType(buildSplit[0]);
-                var versionSplit = Regex.Replace(stringVersion, @"\D", ".").Split(new[] { "." }, StringSplitOptions.RemoveEmptyEntries);
-                version = versionSplit.Select(int.Parse).ToArray();
+                unityVersion = unityVer.FullVersion;
+                buildType = new BuildType(unityVer.BuildType);
+                version = unityVer;
             }
         }
 
@@ -377,9 +371,5 @@ namespace AssetStudio
             Objects.Add(obj);
             ObjectsDic.Add(obj.m_PathID, obj);
         }
-
-        public bool IsVersionStripped => unityVersion == strippedVersion;
-
-        private const string strippedVersion = "0.0.0";
     }
 }
diff --git a/AssetStudio/UnityVersion.cs b/AssetStudio/UnityVersion.cs
new file mode 100644
index 0000000..5a957d6
--- /dev/null
+++ b/AssetStudio/UnityVersion.cs
@@ -0,0 +1,449 @@
+using System;
+using System.Linq;
+using System.Text.RegularExpressions;
+
+namespace AssetStudio
+{
+    public class UnityVersion : IComparable
+    {
+        public int Major { get; }
+        public int Minor { get; }
+        public int Patch { get; }
+        public int Build { get; }
+        public string BuildType { get; }
+        public string FullVersion { get; }
+
+        public bool IsStripped => this == (0, 0, 0);
+
+        public UnityVersion(string version)
+        {
+            if (string.IsNullOrEmpty(version))
+                throw new ArgumentException("Unity version cannot be empty.");
+
+            try
+            {
+                int[] ver = Regex.Matches(version, @"\d+").Cast<Match>().Select(x => int.Parse(x.Value)).ToArray();
+                (Major, Minor, Patch) = (ver[0], ver[1], ver[2]);
+                if (ver.Length == 4)
+                    Build = ver[3];
+                FullVersion = version;
+            }
+            catch (Exception)
+            {
+                throw new NotSupportedException($"Failed to parse Unity version: \"{version}\".");
+            }
+
+            string[] build = Regex.Matches(version, @"\D+").Cast<Match>().Select(x => x.Value).ToArray();
+            if (build.Length > 2)
+            {
+                BuildType = build[2];
+            }
+        }
+
+        public UnityVersion(int major = 0, int minor = 0, int patch = 0)
+        {
+            (Major, Minor, Patch) = (major, minor, patch);
+            FullVersion = $"{Major}.{Minor}.{Patch}";
+            if (!IsStripped)
+            {
+                Build = 1;
+                BuildType = "f";
+                FullVersion += $"{BuildType}{Build}";
+            }
+        }
+
+        #region UnityVer, UnityVer
+        public static bool operator ==(UnityVersion left, UnityVersion right)
+        {
+            return Equals(left, right);
+        }
+
+        public static bool operator !=(UnityVersion left, UnityVersion right)
+        {
+            return !Equals(left, right);
+        }
+
+        public static bool operator >(UnityVersion left, UnityVersion right)
+        {
+            return left?.CompareTo(right) > 0;
+        }
+
+        public static bool operator <(UnityVersion left, UnityVersion right)
+        {
+            return left?.CompareTo(right) < 0;
+        }
+
+        public static bool operator >=(UnityVersion left, UnityVersion right)
+        {
+            return left == right || left > right;
+        }
+
+        public static bool operator <=(UnityVersion left, UnityVersion right)
+        {
+            return left == right || left < right;
+        }
+        #endregion
+
+        #region UnityVer, int
+        public static bool operator ==(UnityVersion left, int right)
+        {
+            return left?.Major == right;
+        }
+
+        public static bool operator !=(UnityVersion left, int right)
+        {
+            return left?.Major != right;
+        }
+
+        public static bool operator >(UnityVersion left, int right)
+        {
+            return left?.Major > right;
+        }
+
+        public static bool operator <(UnityVersion left, int right)
+        {
+            return left?.Major < right;
+        }
+
+        public static bool operator >=(UnityVersion left, int right)
+        {
+            return left?.Major >= right;
+        }
+
+        public static bool operator <=(UnityVersion left, int right)
+        {
+            return left?.Major <= right;
+        }
+        #endregion
+
+        #region UnityVer, (int, int)
+        public static bool operator ==(UnityVersion left, (int, int) right)
+        {
+            return (left?.Major, left?.Minor) == (right.Item1, right.Item2);
+        }
+
+        public static bool operator !=(UnityVersion left, (int, int) right)
+        {
+            return (left?.Major, left?.Minor) != (right.Item1, right.Item2);
+        }
+
+        public static bool operator >(UnityVersion left, (int, int) right)
+        {
+            return left?.CompareTo(right) > 0;
+        }
+
+        public static bool operator <(UnityVersion left, (int, int) right)
+        {
+            return left?.CompareTo(right) < 0;
+        }
+
+        public static bool operator >=(UnityVersion left, (int, int) right)
+        {
+            return left == right || left > right;
+        }
+
+        public static bool operator <=(UnityVersion left, (int, int) right)
+        {
+            return left == right || left < right;
+        }
+        #endregion
+
+        #region UnityVer, (int, int, int)
+        public static bool operator ==(UnityVersion left, (int, int, int) right)
+        {
+            return (left?.Major, left?.Minor, left?.Patch) == (right.Item1, right.Item2, right.Item3);
+        }
+
+        public static bool operator !=(UnityVersion left, (int, int, int) right)
+        {
+            return (left?.Major, left?.Minor, left?.Patch) != (right.Item1, right.Item2, right.Item3);
+        }
+
+        public static bool operator >(UnityVersion left, (int, int, int) right)
+        {
+            return left?.CompareTo(right) > 0;
+        }
+
+        public static bool operator <(UnityVersion left, (int, int, int) right)
+        {
+            return left?.CompareTo(right) < 0;
+        }
+
+        public static bool operator >=(UnityVersion left, (int, int, int) right)
+        {
+            return left == right || left > right;
+        }
+
+        public static bool operator <=(UnityVersion left, (int, int, int) right)
+        {
+            return left == right || left < right;
+        }
+        #endregion
+
+        #region int, UnityVer
+        public static bool operator ==(int left, UnityVersion right)
+        {
+            return left == right?.Major;
+        }
+
+        public static bool operator !=(int left, UnityVersion right)
+        {
+            return left != right?.Major;
+        }
+
+        public static bool operator >(int left, UnityVersion right)
+        {
+            return left > right?.Major;
+        }
+
+        public static bool operator <(int left, UnityVersion right)
+        {
+            return left < right?.Major;
+        }
+
+        public static bool operator >=(int left, UnityVersion right)
+        {
+            return left >= right?.Major;
+        }
+
+        public static bool operator <=(int left, UnityVersion right)
+        {
+            return left <= right?.Major;
+        }
+        #endregion
+
+        #region (int, int), UnityVer
+        public static bool operator ==((int, int) left, UnityVersion right)
+        {
+            return (left.Item1, left.Item2) == (right?.Major, right?.Minor);
+        }
+
+        public static bool operator !=((int, int) left, UnityVersion right)
+        {
+            return (left.Item1, left.Item2) != (right?.Major, right?.Minor);
+        }
+
+        public static bool operator >((int, int) left, UnityVersion right)
+        {
+            return right?.CompareTo(left) < 0;
+        }
+
+        public static bool operator <((int, int) left, UnityVersion right)
+        {
+            return right?.CompareTo(left) > 0;
+        }
+
+        public static bool operator >=((int, int) left, UnityVersion right)
+        {
+            return left == right || left > right;
+        }
+
+        public static bool operator <=((int, int) left, UnityVersion right)
+        {
+            return left == right || left < right;
+        }
+        #endregion
+
+        #region (int, int, int), UnityVer
+        public static bool operator ==((int, int, int) left, UnityVersion right)
+        {
+            return (left.Item1, left.Item2, left.Item3) == (right?.Major, right?.Minor, right?.Patch);
+        }
+
+        public static bool operator !=((int, int, int) left, UnityVersion right)
+        {
+            return (left.Item1, left.Item2, left.Item3) != (right?.Major, right?.Minor, right?.Patch);
+        }
+
+        public static bool operator >((int, int, int) left, UnityVersion right)
+        {
+            return right?.CompareTo(left) < 0;
+        }
+
+        public static bool operator <((int, int, int) left, UnityVersion right)
+        {
+            return right?.CompareTo(left) > 0;
+        }
+
+        public static bool operator >=((int, int, int) left, UnityVersion right)
+        {
+            return left == right || left > right;
+        }
+
+        public static bool operator <=((int, int, int) left, UnityVersion right)
+        {
+            return left == right || left < right;
+        }
+        #endregion
+        
+        private int CompareTo((int, int) other)
+        {
+            var result = Major.CompareTo(other.Item1);
+            if (result != 0)
+            {
+                return result;
+            }
+
+            result = Minor.CompareTo(other.Item2);
+            if (result != 0)
+            {
+                return result;
+            }
+            
+            return 0;
+        }
+
+        private int CompareTo((int, int, int) other)
+        {
+            var result = CompareTo((other.Item1, other.Item2));
+            if (result != 0)
+            {
+                return result;
+            }
+            
+            result = Patch.CompareTo(other.Item3);
+            if (result != 0)
+            {
+                return result;
+            }
+
+            return 0;
+        }
+
+        private int CompareTo(UnityVersion other)
+        {
+            return CompareTo((other.Major, other.Minor, other.Patch));
+        }
+
+        private bool Equals(UnityVersion other)
+        {
+            return (Major, Minor, Patch) == (other.Major, other.Minor, other.Patch);
+        }
+
+        public override bool Equals(object other)
+        {
+            return other is UnityVersion otherUnityVer && Equals(otherUnityVer);
+        }
+
+        public override int GetHashCode()
+        {
+            var result = Major * 31;
+            result = result * 31 + Minor;
+            result = result * 31 + Patch;
+            result = result * 31 + Build;
+
+            return result.GetHashCode();
+        }
+
+        public int CompareTo(object obj)
+        {
+            return CompareTo((UnityVersion)obj);
+        }
+
+        public sealed override string ToString()
+        {
+            return FullVersion;
+        }
+
+        public Tuple<int, int, int> ToTuple()
+        {
+            return new Tuple<int, int, int>(Major, Minor, Patch);
+        }
+
+        public int[] ToArray()
+        {
+            return new[] {Major, Minor, Patch};
+        }
+    }
+
+    public static class UnityVersionExtensions
+    {
+        /// <summary>
+        /// Checks if the Unity version is within the range limits specified by the "lowerLimit" and "upperLimit" attributes.
+        /// </summary>
+        /// <param name="ver"></param>
+        /// <param name="lowerLimit">Minimal version. Included in the range.</param>
+        /// <param name="upperLimit">Maximal version. Not included in the range.</param>
+        /// <returns><see langword="true"/> if the Unity version is within the specified range; otherwise <see langword="false"/>.</returns>
+        /// <remarks>[lowerLimit, upperLimit)</remarks>
+        public static bool IsInRange(this UnityVersion ver, UnityVersion lowerLimit, UnityVersion upperLimit)
+        {
+            return ver >= lowerLimit && ver < upperLimit;
+        }
+
+        public static bool IsInRange(this UnityVersion ver, int lowerLimit, UnityVersion upperLimit)
+        {
+            return ver.Major >= lowerLimit && ver < upperLimit;
+        }
+
+        public static bool IsInRange(this UnityVersion ver, (int, int) lowerLimit, UnityVersion upperLimit)
+        {
+            return ver >= lowerLimit && ver < upperLimit;
+        }
+
+        public static bool IsInRange(this UnityVersion ver, (int, int, int) lowerLimit, UnityVersion upperLimit)
+        {
+            return ver >= lowerLimit && ver < upperLimit;
+        }
+
+        public static bool IsInRange(this UnityVersion ver, UnityVersion lowerLimit, int upperLimit)
+        {
+            return ver >= lowerLimit && ver.Major < upperLimit;
+        }
+
+        public static bool IsInRange(this UnityVersion ver, UnityVersion lowerLimit, (int, int) upperLimit)
+        {
+            return ver >= lowerLimit && ver < upperLimit;
+        }
+
+        public static bool IsInRange(this UnityVersion ver, UnityVersion lowerLimit, (int, int, int) upperLimit)
+        {
+            return ver >= lowerLimit && ver < upperLimit;
+        }
+
+        public static bool IsInRange(this UnityVersion ver, int lowerLimit, int upperLimit)
+        {
+            return ver.Major >= lowerLimit && ver.Major < upperLimit;
+        }
+
+        public static bool IsInRange(this UnityVersion ver, int lowerLimit, (int, int) upperLimit)
+        {
+            return ver.Major >= lowerLimit && ver < upperLimit;
+        }
+
+        public static bool IsInRange(this UnityVersion ver, int lowerLimit, (int, int, int) upperLimit)
+        {
+            return ver.Major >= lowerLimit && ver < upperLimit;
+        }
+
+        public static bool IsInRange(this UnityVersion ver, (int, int) lowerLimit, int upperLimit)
+        {
+            return ver >= lowerLimit && ver.Major < upperLimit;
+        }
+
+        public static bool IsInRange(this UnityVersion ver, (int, int, int) lowerLimit, int upperLimit)
+        {
+            return ver >= lowerLimit && ver.Major < upperLimit;
+        }
+
+        public static bool IsInRange(this UnityVersion ver, (int, int) lowerLimit, (int, int) upperLimit)
+        {
+            return ver >= lowerLimit && ver < upperLimit;
+        }
+
+        public static bool IsInRange(this UnityVersion ver, (int, int) lowerLimit, (int, int, int) upperLimit)
+        {
+            return ver >= lowerLimit && ver < upperLimit;
+        }
+
+        public static bool IsInRange(this UnityVersion ver, (int, int, int) lowerLimit, (int, int) upperLimit)
+        {
+            return ver >= lowerLimit && ver < upperLimit;
+        }
+
+        public static bool IsInRange(this UnityVersion ver, (int, int, int) lowerLimit, (int, int, int) upperLimit)
+        {
+            return ver >= lowerLimit && ver < upperLimit;
+        }
+    }
+}
diff --git a/AssetStudioCLI/Options/CLIOptions.cs b/AssetStudioCLI/Options/CLIOptions.cs
index 12f24b5..a839f81 100644
--- a/AssetStudioCLI/Options/CLIOptions.cs
+++ b/AssetStudioCLI/Options/CLIOptions.cs
@@ -115,7 +115,7 @@ namespace AssetStudioCLI.Options
         public static Option<int> o_maxParallelExportTasks;
         public static Option<ExportListType> o_exportAssetList;
         public static Option<string> o_assemblyPath;
-        public static Option<string> o_unityVersion;
+        public static Option<UnityVersion> o_unityVersion;
         public static Option<bool> f_notRestoreExtensionName;
         public static Option<bool> f_avoidLoadingViaTypetree;
         public static Option<bool> f_loadAllAssets;
@@ -427,9 +427,9 @@ namespace AssetStudioCLI.Options
                 optionExample: "",
                 optionHelpGroup: HelpGroups.Advanced
             );
-            o_unityVersion = new GroupedOption<string>
+            o_unityVersion = new GroupedOption<UnityVersion>
             (
-                optionDefaultValue: "",
+                optionDefaultValue: null,
                 optionName: "--unity-version <text>",
                 optionDescription: "Specify Unity version\n",
                 optionExample: "Example: \"--unity-version 2017.4.39f1\"\n",
@@ -970,7 +970,16 @@ namespace AssetStudioCLI.Options
                             }
                             break;
                         case "--unity-version":
-                            o_unityVersion.Value = value;
+                            try
+                            {
+                                o_unityVersion.Value = new UnityVersion(value);
+                            }
+                            catch (Exception e)
+                            {
+                                Console.WriteLine($"{"Error".Color(brightRed)} during parsing [{option.Color(brightYellow)}] option with value [{value.Color(brightRed)}].\n{e.Message}\n");
+                                ShowOptionDescription(o_unityVersion);
+                                return;
+                            }
                             break;
                         default:
                             Console.WriteLine($"{"Error:".Color(brightRed)} Unknown option [{option.Color(brightRed)}].\n");
diff --git a/AssetStudioCLI/ParallelExporter.cs b/AssetStudioCLI/ParallelExporter.cs
index a5c49ae..91b87b5 100644
--- a/AssetStudioCLI/ParallelExporter.cs
+++ b/AssetStudioCLI/ParallelExporter.cs
@@ -118,7 +118,7 @@ namespace AssetStudioCLI
                     {
                         var sb = new StringBuilder();
                         sb.AppendLine($"Converting {item.TypeString} \"{m_AudioClip.m_Name}\" to wav..");
-                        sb.AppendLine(m_AudioClip.version[0] < 5 ? $"AudioClip type: {m_AudioClip.m_Type}" : $"AudioClip compression format: {m_AudioClip.m_CompressionFormat}");
+                        sb.AppendLine(m_AudioClip.version < 5 ? $"AudioClip type: {m_AudioClip.m_Type}" : $"AudioClip compression format: {m_AudioClip.m_CompressionFormat}");
                         sb.AppendLine($"AudioClip channel count: {m_AudioClip.m_Channels}");
                         sb.AppendLine($"AudioClip sample rate: {m_AudioClip.m_Frequency}");
                         sb.AppendLine($"AudioClip bit depth: {m_AudioClip.m_BitsPerSample}");
@@ -143,7 +143,7 @@ namespace AssetStudioCLI
                     {
                         var sb = new StringBuilder();
                         sb.AppendLine($"Exporting non-fmod {item.TypeString} \"{m_AudioClip.m_Name}\"..");
-                        sb.AppendLine(m_AudioClip.version[0] < 5 ? $"AudioClip type: {m_AudioClip.m_Type}" : $"AudioClip compression format: {m_AudioClip.m_CompressionFormat}");
+                        sb.AppendLine(m_AudioClip.version < 5 ? $"AudioClip type: {m_AudioClip.m_Type}" : $"AudioClip compression format: {m_AudioClip.m_CompressionFormat}");
                         sb.AppendLine($"AudioClip channel count: {m_AudioClip.m_Channels}");
                         sb.AppendLine($"AudioClip sample rate: {m_AudioClip.m_Frequency}");
                         sb.AppendLine($"AudioClip bit depth: {m_AudioClip.m_BitsPerSample}");
diff --git a/AssetStudioCLI/Studio.cs b/AssetStudioCLI/Studio.cs
index d697e29..0706502 100644
--- a/AssetStudioCLI/Studio.cs
+++ b/AssetStudioCLI/Studio.cs
@@ -208,7 +208,7 @@ namespace AssetStudioCLI
             var log = $"Finished loading {assetsManager.assetsFileList.Count} files with {parsedAssetsList.Count} exportable assets";
             var unityVer = assetsManager.assetsFileList[0].version;
             long m_ObjectsCount;
-            if (unityVer[0] > 2020)
+            if (unityVer > 2020)
             {
                 m_ObjectsCount = assetsManager.assetsFileList.Sum(x => x.m_Objects.LongCount(y =>
                     y.classID != (int)ClassIDType.Shader
diff --git a/AssetStudioGUI/AssetStudioGUIForm.Designer.cs b/AssetStudioGUI/AssetStudioGUIForm.Designer.cs
index 22dd2e1..476d7e3 100644
--- a/AssetStudioGUI/AssetStudioGUIForm.Designer.cs
+++ b/AssetStudioGUI/AssetStudioGUIForm.Designer.cs
@@ -316,7 +316,7 @@
             this.customCompressionZstdToolStripMenuItem.CheckOnClick = true;
             this.customCompressionZstdToolStripMenuItem.CheckState = System.Windows.Forms.CheckState.Checked;
             this.customCompressionZstdToolStripMenuItem.Name = "customCompressionZstdToolStripMenuItem";
-            this.customCompressionZstdToolStripMenuItem.Size = new System.Drawing.Size(130, 22);
+            this.customCompressionZstdToolStripMenuItem.Size = new System.Drawing.Size(180, 22);
             this.customCompressionZstdToolStripMenuItem.Text = "Zstd";
             this.customCompressionZstdToolStripMenuItem.ToolTipText = "If selected, Zstd-decompression will be used for assets with custom compression t" +
     "ype";
@@ -326,7 +326,7 @@
             // 
             this.customCompressionLZ4ToolStripMenuItem.CheckOnClick = true;
             this.customCompressionLZ4ToolStripMenuItem.Name = "customCompressionLZ4ToolStripMenuItem";
-            this.customCompressionLZ4ToolStripMenuItem.Size = new System.Drawing.Size(130, 22);
+            this.customCompressionLZ4ToolStripMenuItem.Size = new System.Drawing.Size(180, 22);
             this.customCompressionLZ4ToolStripMenuItem.Text = "Lz4/Lz4HC";
             this.customCompressionLZ4ToolStripMenuItem.ToolTipText = "If selected, Lz4-decompression will be used for assets with custom compression ty" +
     "pe";
@@ -339,6 +339,7 @@
             this.toolStripMenuItem14.Name = "toolStripMenuItem14";
             this.toolStripMenuItem14.Size = new System.Drawing.Size(213, 22);
             this.toolStripMenuItem14.Text = "Specify Unity version";
+            this.toolStripMenuItem14.DropDownClosed += new System.EventHandler(this.specifyUnityVersion_Close);
             // 
             // specifyUnityVersion
             // 
diff --git a/AssetStudioGUI/AssetStudioGUIForm.cs b/AssetStudioGUI/AssetStudioGUIForm.cs
index 1e03886..f07b7b5 100644
--- a/AssetStudioGUI/AssetStudioGUIForm.cs
+++ b/AssetStudioGUI/AssetStudioGUIForm.cs
@@ -172,7 +172,6 @@ namespace AssetStudioGUI
                     }
                 }
             }
-            assetsManager.SpecifyUnityVersion = specifyUnityVersion.Text;
             await Task.Run(() => assetsManager.LoadFilesAndFolders(out openDirectoryBackup, paths));
             saveDirectoryBackup = openDirectoryBackup;
             BuildAssetStructures();
@@ -184,7 +183,6 @@ namespace AssetStudioGUI
             if (openFileDialog1.ShowDialog(this) == DialogResult.OK)
             {
                 ResetForm();
-                assetsManager.SpecifyUnityVersion = specifyUnityVersion.Text;
                 await Task.Run(() => assetsManager.LoadFilesAndFolders(out openDirectoryBackup, openFileDialog1.FileNames));
                 BuildAssetStructures();
             }
@@ -197,12 +195,29 @@ namespace AssetStudioGUI
             if (openFolderDialog.ShowDialog(this) == DialogResult.OK)
             {
                 ResetForm();
-                assetsManager.SpecifyUnityVersion = specifyUnityVersion.Text;
                 await Task.Run(() => assetsManager.LoadFilesAndFolders(out openDirectoryBackup, openFolderDialog.Folder));
                 BuildAssetStructures();
             }
         }
 
+        private void specifyUnityVersion_Close(object sender, EventArgs e)
+        {
+            if (string.IsNullOrEmpty(specifyUnityVersion.Text))
+            {
+                assetsManager.SpecifyUnityVersion = null;
+                return;
+            }
+            
+            try
+            {
+                assetsManager.SpecifyUnityVersion = new UnityVersion(specifyUnityVersion.Text);
+            }
+            catch (Exception ex)
+            {
+                Logger.Error(ex.Message);
+            }
+        }
+
         private async void extractFileToolStripMenuItem_Click(object sender, EventArgs e)
         {
             if (openFileDialog1.ShowDialog(this) == DialogResult.OK)
@@ -288,7 +303,7 @@ namespace AssetStudioGUI
             allToolStripMenuItem.Checked = true;
             var log = $"Finished loading {assetsManager.assetsFileList.Count} file(s) with {assetListView.Items.Count} exportable assets";
             var unityVer = assetsManager.assetsFileList[0].version;
-            var m_ObjectsCount = unityVer[0] > 2020 ?
+            var m_ObjectsCount = unityVer > 2020 ?
                 assetsManager.assetsFileList.Sum(x => x.m_Objects.LongCount(y => y.classID != (int)ClassIDType.Shader)) :
                 assetsManager.assetsFileList.Sum(x => x.m_Objects.Count);
             var objectsCount = assetsManager.assetsFileList.Sum(x => x.Objects.Count);
@@ -948,7 +963,7 @@ namespace AssetStudioGUI
         {
             //Info
             assetItem.InfoText = "Compression format: ";
-            if (m_AudioClip.version[0] < 5)
+            if (m_AudioClip.version < 5)
             {
                 switch (m_AudioClip.m_Type)
                 {
diff --git a/AssetStudioGUI/ParallelExport.cs b/AssetStudioGUI/ParallelExport.cs
index 77a33f0..ab622fe 100644
--- a/AssetStudioGUI/ParallelExport.cs
+++ b/AssetStudioGUI/ParallelExport.cs
@@ -117,7 +117,7 @@ namespace AssetStudioGUI
                     {
                         var sb = new StringBuilder();
                         sb.AppendLine($"Converting {item.TypeString} \"{m_AudioClip.m_Name}\" to wav..");
-                        sb.AppendLine(m_AudioClip.version[0] < 5
+                        sb.AppendLine(m_AudioClip.version < 5
                             ? $"AudioClip type: {m_AudioClip.m_Type}"
                             : $"AudioClip compression format: {m_AudioClip.m_CompressionFormat}");
                         sb.AppendLine($"AudioClip channel count: {m_AudioClip.m_Channels}");
@@ -144,7 +144,7 @@ namespace AssetStudioGUI
                     {
                         var sb = new StringBuilder();
                         sb.AppendLine($"Exporting non-fmod {item.TypeString} \"{m_AudioClip.m_Name}\"..");
-                        sb.AppendLine(m_AudioClip.version[0] < 5
+                        sb.AppendLine(m_AudioClip.version < 5
                             ? $"AudioClip type: {m_AudioClip.m_Type}"
                             : $"AudioClip compression format: {m_AudioClip.m_CompressionFormat}");
                         sb.AppendLine($"AudioClip channel count: {m_AudioClip.m_Channels}");
diff --git a/AssetStudioUtility/AudioClipConverter.cs b/AssetStudioUtility/AudioClipConverter.cs
index 3dec1b7..2a78e56 100644
--- a/AssetStudioUtility/AudioClipConverter.cs
+++ b/AssetStudioUtility/AudioClipConverter.cs
@@ -105,7 +105,7 @@ namespace AssetStudio
 
         public string GetExtensionName()
         {
-            if (m_AudioClip.version[0] < 5)
+            if (m_AudioClip.version < 5)
             {
                 switch (m_AudioClip.m_Type)
                 {
@@ -170,7 +170,7 @@ namespace AssetStudio
     {
         public static bool IsConvertSupport(this AudioClip m_AudioClip)
         {
-            if (m_AudioClip.version[0] < 5)
+            if (m_AudioClip.version < 5)
             {
                 switch (m_AudioClip.m_Type)
                 {
diff --git a/AssetStudioUtility/SerializedTypeHelper.cs b/AssetStudioUtility/SerializedTypeHelper.cs
index 5d2fc8a..bc9839f 100644
--- a/AssetStudioUtility/SerializedTypeHelper.cs
+++ b/AssetStudioUtility/SerializedTypeHelper.cs
@@ -4,9 +4,9 @@ namespace AssetStudio
 {
     public class SerializedTypeHelper
     {
-        private readonly int[] version;
+        private readonly UnityVersion version;
 
-        public SerializedTypeHelper(int[] version)
+        public SerializedTypeHelper(UnityVersion version)
         {
             this.version = version;
         }
@@ -24,7 +24,7 @@ namespace AssetStudio
         {
             nodes.Add(new TypeTreeNode($"PPtr<{type}>", name, indent, false));
             nodes.Add(new TypeTreeNode("int", "m_FileID", indent + 1, false));
-            if (version[0] >= 5) //5.0 and up
+            if (version >= 5) //5.0 and up
             {
                 nodes.Add(new TypeTreeNode("SInt64", "m_PathID", indent + 1, false));
             }
@@ -58,7 +58,7 @@ namespace AssetStudio
             nodes.Add(new TypeTreeNode("float", "value", indent + 4, false));
             nodes.Add(new TypeTreeNode("float", "inSlope", indent + 4, false));
             nodes.Add(new TypeTreeNode("float", "outSlope", indent + 4, false));
-            if (version[0] >= 2018) //2018 and up
+            if (version >= 2018) //2018 and up
             {
                 nodes.Add(new TypeTreeNode("int", "weightedMode", indent + 4, false));
                 nodes.Add(new TypeTreeNode("float", "inWeight", indent + 4, false));
@@ -66,7 +66,7 @@ namespace AssetStudio
             }
             nodes.Add(new TypeTreeNode("int", "m_PreInfinity", indent + 1, false));
             nodes.Add(new TypeTreeNode("int", "m_PostInfinity", indent + 1, false));
-            if (version[0] > 5 || (version[0] == 5 && version[1] >= 3)) //5.3 and up
+            if (version >= (5, 3)) //5.3 and up
             {
                 nodes.Add(new TypeTreeNode("int", "m_RotationOrder", indent + 1, false));
             }
@@ -75,7 +75,7 @@ namespace AssetStudio
         public void AddGradient(List<TypeTreeNode> nodes, string name, int indent)
         {
             nodes.Add(new TypeTreeNode("Gradient", name, indent, false));
-            if (version[0] > 5 || (version[0] == 5 && version[1] >= 6)) //5.6 and up
+            if (version >= (5, 6)) //5.6 and up
             {
                 AddColorRGBA(nodes, "key0", indent + 1);
                 AddColorRGBA(nodes, "key1", indent + 1);
@@ -113,7 +113,7 @@ namespace AssetStudio
             nodes.Add(new TypeTreeNode("UInt16", "atime5", indent + 1, false));
             nodes.Add(new TypeTreeNode("UInt16", "atime6", indent + 1, false));
             nodes.Add(new TypeTreeNode("UInt16", "atime7", indent + 1, false));
-            if (version[0] > 5 || (version[0] == 5 && version[1] >= 5)) //5.5 and up
+            if (version >= (5, 5)) //5.5 and up
             {
                 nodes.Add(new TypeTreeNode("int", "m_Mode", indent + 1, false));
             }
@@ -134,7 +134,7 @@ namespace AssetStudio
             AddGUIStyleState(nodes, "m_OnActive", indent + 1);
             AddGUIStyleState(nodes, "m_OnFocused", indent + 1);
             AddRectOffset(nodes, "m_Border", indent + 1);
-            if (version[0] >= 4) //4 and up
+            if (version >= 4) //4 and up
             {
                 AddRectOffset(nodes, "m_Margin", indent + 1);
                 AddRectOffset(nodes, "m_Padding", indent + 1);
@@ -146,7 +146,7 @@ namespace AssetStudio
             }
             AddRectOffset(nodes, "m_Overflow", indent + 1);
             AddPPtr(nodes, "Font", "m_Font", indent + 1);
-            if (version[0] >= 4) //4 and up
+            if (version >= 4) //4 and up
             {
                 nodes.Add(new TypeTreeNode("int", "m_FontSize", indent + 1, false));
                 nodes.Add(new TypeTreeNode("int", "m_FontStyle", indent + 1, false));
@@ -171,7 +171,7 @@ namespace AssetStudio
                 AddVector2f(nodes, "m_ClipOffset", indent + 1);
                 nodes.Add(new TypeTreeNode("float", "m_FixedWidth", indent + 1, false));
                 nodes.Add(new TypeTreeNode("float", "m_FixedHeight", indent + 1, false));
-                if (version[0] >= 3) //3 and up
+                if (version >= 3) //3 and up
                 {
                     nodes.Add(new TypeTreeNode("int", "m_FontSize", indent + 1, false));
                     nodes.Add(new TypeTreeNode("int", "m_FontStyle", indent + 1, false));
diff --git a/AssetStudioUtility/ShaderConverter.cs b/AssetStudioUtility/ShaderConverter.cs
index ba346d5..0202fef 100644
--- a/AssetStudioUtility/ShaderConverter.cs
+++ b/AssetStudioUtility/ShaderConverter.cs
@@ -871,11 +871,11 @@ namespace AssetStudio
         public int Length;
         public int Segment;
 
-        public ShaderSubProgramEntry(BinaryReader reader, int[] version)
+        public ShaderSubProgramEntry(BinaryReader reader, UnityVersion version)
         {
             Offset = reader.ReadInt32();
             Length = reader.ReadInt32();
-            if (version[0] > 2019 || (version[0] == 2019 && version[1] >= 3)) //2019.3 and up
+            if (version >= (2019, 3)) //2019.3 and up
             {
                 Segment = reader.ReadInt32();
             }
@@ -887,7 +887,7 @@ namespace AssetStudio
         public ShaderSubProgramEntry[] entries;
         public ShaderSubProgram[] m_SubPrograms;
 
-        public ShaderProgram(BinaryReader reader, int[] version)
+        public ShaderProgram(BinaryReader reader, UnityVersion version)
         {
             var subProgramsCapacity = reader.ReadInt32();
             entries = new ShaderSubProgramEntry[subProgramsCapacity];
diff --git a/AssetStudioUtility/Texture2DConverter.cs b/AssetStudioUtility/Texture2DConverter.cs
index 20c4bfa..d831458 100644
--- a/AssetStudioUtility/Texture2DConverter.cs
+++ b/AssetStudioUtility/Texture2DConverter.cs
@@ -13,7 +13,7 @@ namespace AssetStudio
         private int m_HeightCrop;
         private TextureFormat m_TextureFormat;
         private byte[] m_PlatformBlob;
-        private int[] version;
+        private UnityVersion version;
         private BuildTarget platform;
         private int outPutDataSize;
 
@@ -748,7 +748,7 @@ namespace AssetStudio
 
         private bool UnpackCrunch(byte[] image_data, out byte[] result)
         {
-            if (version[0] > 2017 || (version[0] == 2017 && version[1] >= 3) //2017.3 and up
+            if (version >= (2017, 3) //2017.3 and up
                 || m_TextureFormat == TextureFormat.ETC_RGB4Crunched
                 || m_TextureFormat == TextureFormat.ETC2_RGBA8Crunched)
             {