Add changelog entry for opentripplanner#7440 [ci skip]

Author: OTP Changelog Bot

doc/user/Changelog.md

@@ -15,6 +15,7 @@ based on merged pull requests. Search GitHub issues and pull requests for smalle
 - Prevent long routes mistakenly getting grouped across service-date [#7452](https://github.com/opentripplanner/OpenTripPlanner/pull/7452)
 - Migrate away from deprecated FeedScopedId.parse() [#7457](https://github.com/opentripplanner/OpenTripPlanner/pull/7457)
 - Expose GTFS feed version in the GTFS GraphQL API [#7445](https://github.com/opentripplanner/OpenTripPlanner/pull/7445)
+- Fix MC Raptor Pareto comparator performance regression [#7440](https://github.com/opentripplanner/OpenTripPlanner/pull/7440)
 [](AUTOMATIC_CHANGELOG_PLACEHOLDER_DO_NOT_REMOVE)
 
 ## 2.9.0 (2026-03-18)