diff --git a/AGENT.md b/AGENT.md
index 2d58d04..4b35fe4 100644
--- a/AGENT.md
+++ b/AGENT.md
@@ -230,8 +230,7 @@ defer result.free(allocator);           // 释放内存
 
 ### 5.1 支持的 Zig 版本
 
-- ✅ **完全支持**：Zig 0.14.x, 0.15.x
-- ⚠️ **部分支持**：Zig 0.16 (nightly)
+- ✅ **完全支持**：Zig 0.14.x, 0.15.x, 0.16.0
 
 ### 5.2 关键差异点
 
diff --git a/CLAUDE.md b/CLAUDE.md
index c0b1379..2bf90f1 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -28,7 +28,7 @@ zig build docs
   - ArrayList API changes in Zig 0.15+ (allocator parameter required for methods)
   - ArrayList initialization changes in Zig 0.16 (`std.ArrayList(T){}` removed, use `initCapacity`)
   - Build system API differences between versions
-  - `std.time.Timer` removed in 0.16 (replaced with platform-specific timing in benchmarks)
+  - `std.time.Timer` removed in 0.16 (benchmarks use `std.Io.Clock.awake` instead)
   - `std.heap.GeneralPurposeAllocator` removed in 0.16 (replaced with `page_allocator`)
   - `std.io.fixedBufferStream` removed in 0.16 (compat layer provides `BufferStream`)
 
@@ -82,4 +82,4 @@ Tests use Zig's built-in testing framework. The test suite in `src/test.zig` cov
 
 ## CI/CD
 
-GitHub Actions workflow tests against multiple Zig versions (0.14.0, 0.15.1, nightly) to ensure compatibility.
\ No newline at end of file
+GitHub Actions workflow tests against multiple Zig versions (0.14.1, 0.15.1, 0.16.0, and master) to ensure compatibility.
diff --git a/README.md b/README.md
index 48df6f3..39eed3a 100644
--- a/README.md
+++ b/README.md
@@ -47,12 +47,12 @@ This library is tested and optimized for all major platforms and architectures:
 | 0.13 and older       | 0.0.6           | Legacy support                        |
 | 0.14.0               | Current         | ✅ Fully supported                    |
 | 0.15.x               | Current         | ✅ Fully supported                    |
-| 0.16.0-dev (nightly) | Current         | ✅ Supported with compatibility layer |
+| 0.16.0               | Current         | ✅ Supported with compatibility layer |
 
 > **Note:** For Zig 0.13 and older versions, please use version `0.0.6` of this library.
 > **Note:** Zig 0.16+ removes `std.io.FixedBufferStream`, but this library provides a compatibility layer to maintain the same API across all supported versions.
 
-For Zig `0.14.0`, `0.15.x`, and `0.16.0-dev`, follow these steps:
+For Zig `0.14.0`, `0.15.x`, and `0.16.0`, follow these steps:
 
 1.  **Add as a dependency:**
     Add the library to your `build.zig.zon` file. You can fetch a specific commit or branch.
diff --git a/README_CN.md b/README_CN.md
index 090ac58..4472507 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -47,12 +47,12 @@ Zig 编程语言的 MessagePack 实现。此库提供了一种简单高效的方
 | 0.13 及更早版本      | 0.0.6    | 旧版支持          |
 | 0.14.0               | 当前版本 | ✅ 完全支持       |
 | 0.15.x               | 当前版本 | ✅ 完全支持       |
-| 0.16.0-dev (nightly) | 当前版本 | ✅ 通过兼容层支持 |
+| 0.16.0               | 当前版本 | ✅ 通过兼容层支持 |
 
 > **注意**: 对于 Zig 0.13 及更早版本，请使用本库的 `0.0.6` 版本。
 > **注意**: Zig 0.16+ 移除了 `std.io.FixedBufferStream`，但本库提供了兼容层以在所有支持的版本中维持相同的 API。
 
-对于 Zig `0.14.0`、`0.15.x` 和 `0.16.0-dev` 版本，请按以下步骤操作：
+对于 Zig `0.14.0`、`0.15.x` 和 `0.16.0` 版本，请按以下步骤操作：
 
 1. **添加为依赖项**:
    将库添加到您的 `build.zig.zon` 文件中。您可以获取特定的提交或分支。
diff --git a/src/bench.zig b/src/bench.zig
index 84c9e01..59996f9 100644
--- a/src/bench.zig
+++ b/src/bench.zig
@@ -17,24 +17,18 @@ const pack = msgpack.Pack(
 );
 
 const is_zig_16 = builtin.zig_version.minor >= 16;
+const BenchRuntime = if (is_zig_16) struct {
+    var io: ?std.Io = null;
+} else struct {};
 
-/// Get monotonic time in nanoseconds (cross-platform)
+/// Get monotonic time in nanoseconds on Zig 0.16+.
 fn getTimeNs() u64 {
-    if (builtin.os.tag == .windows) {
-        const w = std.os.windows;
-        var counter: w.LARGE_INTEGER = undefined;
-        _ = w.ntdll.RtlQueryPerformanceCounter(&counter);
-        var freq: w.LARGE_INTEGER = undefined;
-        _ = w.ntdll.RtlQueryPerformanceFrequency(&freq);
-        const ns = std.time.ns_per_s;
-        const c: u64 = @bitCast(counter);
-        const f: u64 = @bitCast(freq);
-        return @intCast(@divTrunc(@as(u128, c) * ns, @as(u128, f)));
-    } else if (builtin.os.tag != .windows) {
-        var ts: std.c.timespec = undefined;
-        _ = std.c.clock_gettime(std.c.CLOCK.MONOTONIC, &ts);
-        return @as(u64, @intCast(ts.tv_sec)) * std.time.ns_per_s + @as(u64, @intCast(ts.tv_nsec));
-    } else @compileError("unsupported OS for benchmark");
+    if (is_zig_16) {
+        const io = BenchRuntime.io orelse @panic("benchmark runtime io is not initialized");
+        return @intCast(std.Io.Clock.awake.now(io).nanoseconds);
+    }
+
+    unreachable;
 }
 
 /// Benchmark timer helper
@@ -962,7 +956,7 @@ fn runBenchmarks() !void {
 
 const BenchEntry = if (is_zig_16) struct {
     pub fn main(init: std.process.Init) !void {
-        _ = &init;
+        BenchRuntime.io = init.io;
         try runBenchmarks();
     }
 } else struct {