diff --git a/CHANGELOG.md b/CHANGELOG.md
index e31153d..7436598 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,21 @@
 # Changelog
 
+## [1.1.3](https://github.com/trpc-group/trpc-agent-python/releases/tag/v1.1.3) (2026-05-12)
+
+### Features
+
+* Model: Added an OpenAI-compatible adapter layer to isolate provider-specific behaviors, including DeepSeek v4 reasoning/format handling and hy3-preview tool-prompt parsing support.
+* Memory: Added MemPalace integration with `MemPalaceMemoryService` and `mempalace_tool`, plus related examples and documentation.
+* Code Execution: Added Cube/E2B sandbox executor and workspace runtime with optional dependency support and end-to-end example coverage.
+* Eval: Added support for evaluating the same metric across different LLMs.
+
+### Bug Fixes
+
+* Model: Fixed ToolPrompt streaming parsing so multiple tool calls in one response are preserved instead of only the last call.
+* Storage: Improved SQL storage compatibility by filtering empty content parts, fixing MySQL `DynamicPickleType` serialization, and stabilizing session timestamp updates.
+* Eval: Fixed judge-agent JSON output handling in the eval module.
+* CI: Added missing `e2b-code-interpreter` test dependency to prevent cube test collection failures.
+
 ## [1.1.2.post1](https://github.com/trpc-group/trpc-agent-python/releases/tag/v1.1.2.post1) (2026-04-29)
 
 ### Features
diff --git a/tests/test_version.py b/tests/test_version.py
index 1d2a84d..def28fc 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.post1'
+    assert __version__ == '1.1.3'
diff --git a/trpc_agent_sdk/version.py b/trpc_agent_sdk/version.py
index 709bc9d..a77c39c 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.post1'
+__version__ = '1.1.3'