diff --git a/Data~/hybridclr_version.json b/Data~/hybridclr_version.json
index 62cbde5..77c5af9 100644
--- a/Data~/hybridclr_version.json
+++ b/Data~/hybridclr_version.json
@@ -2,28 +2,28 @@
     "versions": [
     {
         "unity_version":"2019",
-        "hybridclr" : { "branch":"v5.2.0"},
-        "il2cpp_plus": { "branch":"v2019-5.0.0"}
+        "hybridclr" : { "branch":"v5.2.1"},
+        "il2cpp_plus": { "branch":"v2019-5.2.1"}
     },
     {
         "unity_version":"2020",
-        "hybridclr" : { "branch":"v5.2.0"},
-        "il2cpp_plus": { "branch":"v2020-5.1.0"}
+        "hybridclr" : { "branch":"v5.2.1"},
+        "il2cpp_plus": { "branch":"v2020-5.2.1"}
     },
     {
         "unity_version":"2021",
-        "hybridclr" : { "branch":"v5.2.0"},
-        "il2cpp_plus": { "branch":"v2021-5.1.0"}
+        "hybridclr" : { "branch":"v5.2.1"},
+        "il2cpp_plus": { "branch":"v2021-5.2.1"}
     },
     {
         "unity_version":"2022",
-        "hybridclr" : { "branch":"v5.2.0"},
-        "il2cpp_plus": { "branch":"v2022-5.2.0"}
+        "hybridclr" : { "branch":"v5.2.1"},
+        "il2cpp_plus": { "branch":"v2022-5.2.1"}
     },
     {
         "unity_version":"2022-tuanjie",
-        "hybridclr" : { "branch":"v5.2.0"},
-        "il2cpp_plus": { "branch":"v2022-tuanjie-5.2.0"}
+        "hybridclr" : { "branch":"v5.2.1"},
+        "il2cpp_plus": { "branch":"v2022-tuanjie-5.2.1"}
     }
     ]
 }
\ No newline at end of file
diff --git a/RELEASELOG.md b/RELEASELOG.md
index 8dafd18..e804c55 100644
--- a/RELEASELOG.md
+++ b/RELEASELOG.md
@@ -1,5 +1,19 @@
 # 发布日志
 
+## 5.2.1
+
+发布日期 2024.4.7.
+
+### Runtime
+
+- [fix] 修复WebGL平台不打印堆栈日志的bug
+- [fix] 修复RuntimeConfig::GetRuntimeOption获取InterpreterThreadExceptionFlowSize错误返回s_threadFrameStackSize的bug
+
+### Editor
+
+- [opt] LoadModule中设置 mod.EnableTypeDefFindCache = true，计算桥接函数的时间缩短为原来的1/3
+- [fix] 修复团结引擎导出iOS平台xcode工程文件名改名为Tuanjie-iPhone.xcodeproj导致构建xcode工程失败的bug
+
 ## 5.2.0
 
 发布日期 2024.3.25.
diff --git a/package.json b/package.json
index bd8ebb8..7090fd2 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "com.code-philosophy.hybridclr",
-  "version": "5.2.0",
+  "version": "5.2.1",
   "displayName": "HybridCLR",
   "description": "HybridCLR is a fully featured, zero-cost, high-performance, low-memory solution for Unity's all-platform native c# hotupdate.",
   "category": "Runtime",