Add note for later

Author: brendan-kellam

CHANGELOG.md

@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+<!-- @NOTE: this release includes a API change that affects the MCP package (@sourcebot/mcp). On release, bump the MCP package's version and delete this message. -->
+
 ### Fixed
 - Delete account join request when redeeming an invite. [#352](https://github.com/sourcebot-dev/sourcebot/pull/352)
 - Fix issue where a repository would not be included in a search context if the context was created before the repository. [#354](https://github.com/sourcebot-dev/sourcebot/pull/354)