diff --git a/CHANGELOG.md b/CHANGELOG.md
index d0c57c4..e31153d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,18 @@
 # Changelog
 
+## [1.1.2.post1](https://github.com/trpc-group/trpc-agent-python/releases/tag/v1.1.2.post1) (2026-04-29)
+
+### Features
+
+* Session: Updated session summarization to retain full conversation history while marking summarized events as model-invisible.
+* Session: Added backend-threaded summarization execution to avoid blocking front-end conversation turns.
+* Skill: Added multi-user support for skill operations.
+
+### Bug Fixes
+
+* Code Execution: Fixed the conflict between code execution and tool invocation where tool data could be lost after code execution.
+* MCP: Added support for parsing and returning multiple MCP tool results in a single response.
+
 ## [1.1.2](https://github.com/trpc-group/trpc-agent-python/releases/tag/v1.1.2) (2026-04-24)
 
 ### Features
diff --git a/tests/test_version.py b/tests/test_version.py
index 347e79f..1d2a84d 100644
--- a/tests/test_version.py
+++ b/tests/test_version.py
@@ -10,4 +10,4 @@
 
 def test_version():
     """Test the version module."""
-    assert __version__ == '1.1.2'
+    assert __version__ == '1.1.2.post1'
diff --git a/trpc_agent_sdk/version.py b/trpc_agent_sdk/version.py
index 58b4df0..709bc9d 100644
--- a/trpc_agent_sdk/version.py
+++ b/trpc_agent_sdk/version.py
@@ -9,4 +9,4 @@
 This module defines the version information for TRPC Agent
 """
 
-__version__ = '1.1.2'
+__version__ = '1.1.2.post1'