diff --git a/VERSION b/VERSION
index 65043834..124b7a2c 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-26.1.0.dev4
+26.1.1
diff --git a/docs/pyagentspec/source/changelog.rst b/docs/pyagentspec/source/changelog.rst
index 57ee6cd6..bf7a5a2c 100644
--- a/docs/pyagentspec/source/changelog.rst
+++ b/docs/pyagentspec/source/changelog.rst
@@ -7,6 +7,18 @@ Agent Spec |release|
 New features
 ^^^^^^^^^^^^
 
+Improvements
+^^^^^^^^^^^^
+
+Breaking Changes
+^^^^^^^^^^^^^^^^
+
+Agent Spec 26.1.0
+--------------------
+
+New features
+^^^^^^^^^^^^
+
 * **MCP tools support in LangGraph adapter:**
 
   The LangGraph adapter now supports Model Context Protocol (MCP) tools.