diff --git a/CHANGELOG.md b/CHANGELOG.md
index f23bf58..a593d4c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,19 @@
 # Changelog
 
+## [1.1.1](https://github.com/trpc-group/trpc-agent-python/releases/tag/v1.1.1) (2026-04-20)
+
+### Features
+
+* Storage: Added the `usage_metadata` field to SQL storage and introduced automatic migration for missing columns.
+* Skill: Added cross-session skill state persistence so loaded skills can be reused across sessions, reducing repeated skill loading and unnecessary retry turns.
+* Skill: Added skill install/uninstall awareness so the model can detect skill lifecycle changes and avoid missing-skill lookups or calls to uninstalled skills.
+* Session: Added `usage_metadata` support in SQL session storage for persisting and reading token usage statistics.
+
+### Bug Fixes
+
+* Skill: Reduced hallucinated skill command generation when users intend to run commands, lowering invalid command attempts and retry loops.
+
+
 ## [1.1.0](https://github.com/trpc-group/trpc-agent-python/releases/tag/v1.1.0) (2026-04-07)
 
 ### Features
diff --git a/examples/agui_with_cancel/_agui_runner.py b/examples/agui_with_cancel/_agui_runner.py
index b6d7ae6..a54e982 100644
--- a/examples/agui_with_cancel/_agui_runner.py
+++ b/examples/agui_with_cancel/_agui_runner.py
@@ -17,6 +17,7 @@
 from trpc_agent_sdk.server.ag_ui import AgUiAgent
 from trpc_agent_sdk.server.ag_ui import AgUiManager
 from trpc_agent_sdk.server.ag_ui import AgUiService
+from trpc_agent_sdk.version import __version__
 
 
 class HealthResponse(BaseModel):
@@ -24,7 +25,7 @@ class HealthResponse(BaseModel):
 
     status: str = "ok"
     app_name: str
-    version: str = "1.0.0"
+    version: str = __version__
 
 
 class AguiRunner:
@@ -65,7 +66,7 @@ def _create_app(self) -> FastAPI:
         app = FastAPI(
             title="TRPC AG-UI Server (Cancel Demo)",
             description="HTTP API for TRPC AG-UI Server with Cancel support",
-            version="1.0.0",
+            version=__version__,
             lifespan=self._lifespan,
         )
         return app
diff --git a/examples/fastapi_server/_app.py b/examples/fastapi_server/_app.py
index 07903e7..0b8d672 100644
--- a/examples/fastapi_server/_app.py
+++ b/examples/fastapi_server/_app.py
@@ -47,6 +47,7 @@
 from trpc_agent_sdk.log import logger
 from trpc_agent_sdk.types import Content
 from trpc_agent_sdk.types import Part
+from trpc_agent_sdk.version import __version__
 
 
 def create_app(manager: RunnerManager) -> FastAPI:
@@ -71,7 +72,7 @@ async def _lifespan(app: FastAPI):  # noqa: ARG001
     app = FastAPI(
         title="TRPC Agent Server",
         description="HTTP API for TRPC Agent",
-        version="1.0.0",
+        version=__version__,
         lifespan=_lifespan,
     )
 
diff --git a/examples/fastapi_server/_schemas.py b/examples/fastapi_server/_schemas.py
index d66a90d..9df742f 100644
--- a/examples/fastapi_server/_schemas.py
+++ b/examples/fastapi_server/_schemas.py
@@ -11,6 +11,8 @@
 
 from pydantic import BaseModel
 
+from trpc_agent_sdk.version import __version__
+
 
 class ChatRequest(BaseModel):
     """Body for POST /v1/chat and POST /v1/chat/stream."""
@@ -58,4 +60,4 @@ class HealthResponse(BaseModel):
 
     status: str = "ok"
     app_name: str
-    version: str = "1.0.0"
+    version: str = __version__
diff --git a/tests/test_version.py b/tests/test_version.py
index 971663b..f05b6e1 100644
--- a/tests/test_version.py
+++ b/tests/test_version.py
@@ -6,9 +6,8 @@
 
 """Test the version module."""
 
-import pytest
 from trpc_agent_sdk.version import __version__
 
 def test_version():
     """Test the version module."""
-    assert __version__ == '1.0.0'
+    assert __version__ == '1.1.1'
diff --git a/trpc_agent_sdk/version.py b/trpc_agent_sdk/version.py
index 47749e0..8ed1d4b 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__ = '1.0.0'
+__version__ = '1.1.1'