diff --git a/.gitignore b/.gitignore
index fb43a5a..e7ca4fc 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,4 @@ nohup.out
 *.log
 *.pyc
 .vscode/settings.json
+.agents/
diff --git a/docs/toolchain/appendix/history.md b/docs/toolchain/appendix/history.md
index 476bfbb..cc08d8d 100644
--- a/docs/toolchain/appendix/history.md
+++ b/docs/toolchain/appendix/history.md
@@ -24,6 +24,11 @@
 
 ## Toolchain Change log
 
+* **[v0.33.1]**
+    * Improve LayerNorm decomposition performance.
+    * Improve handling for models that reuse weights across multiple operators.
+    * Improve constant folding reliability.
+    * Support ReduceMean fusion when `keepdims` is set to 0.
 * **[v0.33.0]**
     * Update TopK and Split node support.
     * Improve per-channel radix handling for Mul nodes.
diff --git a/docs/toolchain/manual_1_overview.md b/docs/toolchain/manual_1_overview.md
index 43db4e4..25cbab5 100644
--- a/docs/toolchain/manual_1_overview.md
+++ b/docs/toolchain/manual_1_overview.md
@@ -4,8 +4,8 @@
 
 # 1. Toolchain Overview
 
-**2026-05**
-**Toolchain v0.33.0**
+**2026-06**
+**Toolchain v0.33.1**
 
 ## 1.1. Introduction
 
@@ -20,6 +20,11 @@ In this document, you'll learn:
 
 **Major changes of the current version**
 
+* **[v0.33.1]**
+    * Improve LayerNorm decomposition performance.
+    * Improve handling for models that reuse weights across multiple operators.
+    * Improve constant folding reliability.
+    * Support ReduceMean fusion when `keepdims` is set to 0.
 * **[v0.33.0]**
     * Update TopK and Split node support.
     * Improve per-channel radix handling for Mul nodes.