Add 8.6.2 CHANGELOG items

Signed-off-by: Rémy Coutable <remy@rymai.me>

CHANGELOG

@@ -5,7 +5,7 @@ v 8.7.0 (unreleased)
   - Preserve time notes/comments have been updated at when moving issue
   - Make HTTP(s) label consistent on clone bar (Stan Hu)
   - Expose label description in API (Mariusz Jachimowicz)
-  - Allow back dating on issues when created through the API 
+  - Allow back dating on issues when created through the API
   - Fix avatar stretching by providing a cropping feature
   - Add links to CI setup documentation from project settings and builds pages
   - Handle nil descriptions in Slack issue messages (Stan Hu)
@@ -13,9 +13,27 @@ v 8.7.0 (unreleased)
   - Implement 'TODOs View' as an option for dashboard preferences !3379 (Elias W.)
   - Gracefully handle notes on deleted commits in merge requests (Stan Hu)
 
-v 8.6.2 (unreleased)
-  - Comments on confidential issues don't show up in activity feed to non-members
-  - Fix NoMethodError when visiting CI root path at `/ci`
+v 8.6.2
+  - Fix dropdown alignment. !3298
+  - Fix issuable sidebar overlaps on tablet. !3299
+  - Make dropdowns pixel perfect. !3337
+  - Fix order of steps to prevent PostgreSQL errors when running migration. !3355
+  - Fix bold text in issuable sidebar. !3358
+  - Fix error with anonymous token in applications settings. !3362
+  - Fix the milestone 'upcoming' filter. !3364 + !3368
+  - Fix comments on confidential issues showing up in activity feed to non-members. !3375
+  - Fix `NoMethodError` when visiting CI root path at `/ci`. !3377
+  - Add a tooltip to new branch button in issue page. !3380
+  - Fix an issue hiding the password form when signed-in with a linked account. !3381
+  - Add links to CI setup documentation from project settings and builds pages. !3384
+  - Fix an issue with width of project select dropdown. !3386
+  - Remove redundant `require`s from Banzai files. !3391
+  - Fix error 500 with cancel button on issuable edit form. !3392 + !3417
+  - Fix background when editing a highlighted note. !3423
+  - Remove tabstop from the WIP toggle links. !3426
+  - Ensure private project snippets are not viewable by unauthorized people.
+  - Gracefully handle notes on deleted commits in merge requests (Stan Hu). !3402
+  - Fixed issue with notification settings not saving. !3452
 
 v 8.6.1
   - Add option to reload the schema before restoring a database backup. !2807