diff --git a/binding/csharp/IP2Region.Net/XDB/Version.cs b/binding/csharp/IP2Region.Net/XDB/Version.cs
deleted file mode 100644
index 8a4e014..0000000
--- a/binding/csharp/IP2Region.Net/XDB/Version.cs
+++ /dev/null
@@ -1,20 +0,0 @@
-using System.Buffers.Binary;
-
-namespace IP2Region.Net.XDB;
-
-public struct Version
-{
-    public int IndexSize { get; set; }
-
-    public int Length { get; set; }
-
-    public uint GetVectorIndexStartPos(ReadOnlyMemory<byte> buffer)
-    {
-        return BinaryPrimitives.ReadUInt32LittleEndian(buffer.Span);
-    }
-
-    public uint GetVectorIndexEndPos(ReadOnlyMemory<byte> buffer)
-    {
-        return BinaryPrimitives.ReadUInt32LittleEndian(buffer.Slice(Length).Span);
-    }
-}
diff --git a/binding/csharp/IP2Region.Net/XDB/XdbVersion.cs b/binding/csharp/IP2Region.Net/XDB/XdbVersion.cs
new file mode 100644
index 0000000..2ac7398
--- /dev/null
+++ b/binding/csharp/IP2Region.Net/XDB/XdbVersion.cs
@@ -0,0 +1,39 @@
+namespace IP2Region.Net.XDB;
+
+public record struct XdbVersion
+{
+    /// <summary>
+    /// 获得/设置 版本号
+    /// </summary>
+    public ushort Ver { get; set; }
+
+    /// <summary>
+    /// 获得/设置 缓存策略
+    /// </summary>
+    public ushort CachePolice { get; set; }
+
+    /// <summary>
+    /// 获得/设置 文件生成时间
+    /// </summary>
+    public DateTimeOffset CreatedTime { get; set; }
+
+    /// <summary>
+    /// 获得/设置 索引起始地址
+    /// </summary>
+    public uint StartIndex { get; set; }
+
+    /// <summary>
+    /// 获得/设置 索引结束地址
+    /// </summary>
+    public uint EndIndex { get; set; }
+
+    /// <summary>
+    /// 获得/设置 IP版本
+    /// </summary>
+    public ushort IPVer { get; set; }
+
+    /// <summary>
+    /// 获得/设置 指针字节数
+    /// </summary>
+    public ushort BytesCount { get; set; }
+}