diff --git a/CHANGELOG.md b/CHANGELOG.md
index b5cd119a5..106c2d550 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,11 @@
 
 ## Unreleased
 
+- Added MCP adapter runtime (`MCPToolAdapter`) to connect to external MCP servers via stdio,
+  SSE, and streamable-http transports. Supports full connection lifecycle (connect with timeout,
+  reconnect, disconnect), tool discovery, input-validated invocation, and bulk registration into
+  `ToolRegistry` with `source="mcp"` and `checkpointable=False`. Includes Behave unit tests,
+  Robot integration test, ASV benchmarks, and `docs/reference/mcp_adapter.md`.
 - Expanded CONTRIBUTING.md with detailed guidance on the issue creation process, label system,
   ticket lifecycle, pull request requirements, and review/merge process.
 - Added commit scope, quality, and message format guidelines to CONTRIBUTING.md.