[FIX rubocop#6262] Update changelog

CHANGELOG.md

@@ -89,6 +89,8 @@
 * [#595](https://github.com/rubocop-hq/rubocop/issues/595): Exclude files ignored by `git`. ([@AlexWayfer][])
 * [#6429](https://github.com/rubocop-hq/rubocop/issues/6429): Fix autocorrect in Rails/Validation to not wrap hash options with braces in an extra set of braces. ([@bquorning][])
 * [#6533](https://github.com/rubocop-hq/rubocop/issues/6533): Improved warning message for unrecognized cop parameters to include Supported parameters. ([@MagedMilad][])
+* [#6389](https://github.com/rubocop-hq/rubocop/pull/6389): Fix false negative for `Style/TrailingCommaInHashLitera`/`Style/TrailingCommaInArrayLiteral` when there is a comment in the last line. ([@bayandin][])
+* [#6343](https://github.com/rubocop-hq/rubocop/pull/6343): Optimise `--auto-gen-config` when `Metrics/LineLength` cop is disabled. ([@tom-lord][])
 
 ## 0.61.1 (2018-12-06)
 
@@ -3784,3 +3786,4 @@
 [@rmm5t]: https://github.com/rmm5t
 [@marcotc]: https://github.com/marcotc
 [@dazuma]: https://github.com/dazuma
+[@tom-lord]: https://github.com/tom-lord