diff --git a/Data~/hybridclr_version.json b/Data~/hybridclr_version.json
index 0027aec..b259eee 100644
--- a/Data~/hybridclr_version.json
+++ b/Data~/hybridclr_version.json
@@ -3,37 +3,37 @@
     {
         "unity_version":"2019",
         "hybridclr" : { "branch":"v8.0.0"},
-        "il2cpp_plus": { "branch":"v2019-8.0.0"}
+        "il2cpp_plus": { "branch":"v2019-8.1.0"}
     },
     {
         "unity_version":"2020",
         "hybridclr" : { "branch":"v8.0.0"},
-        "il2cpp_plus": { "branch":"v2020-8.0.0"}
+        "il2cpp_plus": { "branch":"v2020-8.1.0"}
     },
     {
         "unity_version":"2021",
         "hybridclr" : { "branch":"v8.0.0"},
-        "il2cpp_plus": { "branch":"v2021-8.0.0"}
+        "il2cpp_plus": { "branch":"v2021-8.1.0"}
     },
     {
         "unity_version":"2022",
         "hybridclr" : { "branch":"v8.0.0"},
-        "il2cpp_plus": { "branch":"v2022-8.0.0"}
+        "il2cpp_plus": { "branch":"v2022-8.1.0"}
     },
     {
         "unity_version":"2022-tuanjie",
         "hybridclr" : { "branch":"v8.0.0"},
-        "il2cpp_plus": { "branch":"v2022-tuanjie-8.0.0"}
+        "il2cpp_plus": { "branch":"v2022-tuanjie-8.1.0"}
     },
     {
         "unity_version":"2023",
         "hybridclr" : { "branch":"v8.0.0"},
-        "il2cpp_plus": { "branch":"v2023-8.0.0"}
+        "il2cpp_plus": { "branch":"v2023-8.1.0"}
     },
     {
         "unity_version":"6000",
         "hybridclr" : { "branch":"v8.0.0"},
-        "il2cpp_plus": { "branch":"v6000-8.0.0"}
+        "il2cpp_plus": { "branch":"v6000-8.1.0"}
     }
     ]
 }
\ No newline at end of file
diff --git a/RELEASELOG.md b/RELEASELOG.md
index 38706e1..8e27e0a 100644
--- a/RELEASELOG.md
+++ b/RELEASELOG.md
@@ -1,5 +1,17 @@
 # ReleaseLog
 
+## 8.1.0
+
+Release Date: 2025-05-29.
+
+### Runtime
+
+- [opt] **important**! use std::unordered_set for s_GenericInst to reduce the time cost of Assembly.Load to 33% of the original.
+
+### Editor
+
+- [fix] fix bug of GenericArgumentContext that inflate ByRef and SZArray to Ptr.
+
 ## 8.0.0
 
 Release Date: 2025-05-02.
diff --git a/package.json b/package.json
index 45c6be9..4b565bb 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "com.code-philosophy.hybridclr",
-  "version": "8.0.0",
+  "version": "8.1.0",
   "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",