Updated CHANGELOG

CHANGELOG

@@ -46,6 +46,7 @@ v 8.7.0 (unreleased)
 v 8.6.6
   - Fix error on language detection when repository has no HEAD (e.g., master branch). !3654 (Jeroen Bobbeldijk)
+  - Project switcher uses new dropdown styling
 v 8.6.5
   - Fix importing from GitHub Enterprise. !3529
@@ -59,15 +60,6 @@ v 8.6.5
 v 8.6.4
   - Don't attempt to fetch any tags from a forked repo (Stan Hu)
   - Redesign the Labels page
-  - Project switcher uses new dropdown styling
-  - Project switcher uses new dropdown styling
-
-v 8.6.5 (unreleased)
-  - Only update repository language if it is not set to improve performance
-  - Check permissions when user attempts to import members from another project
-
-v 8.6.4
-  - Don't attempt to fetch any tags from a forked repo (Stan Hu)
 v 8.6.3
   - Mentions on confidential issues doesn't create todos for non-members. !3374