Fix 500 errors in Atom feeds due to push events

Closes #36705

See merge request !13695

Fixes the stable branches fly out nav JS

See merge request !13683

Speed up Group#user_ids_for_project_authorizations

Closes #36182

See merge request !13508

Merge branch '36630-activerecord-statementinvalid-pg-notnullviolation-error-null-value-in-column-a_mode-violates-not-null-constraint' into 'master'

Resolve "ActiveRecord::StatementInvalid: PG::NotNullViolation: ERROR:  null value in column "a_mode" violates not-null constraint"

Closes #36630

See merge request !13663

Describe the supported version of group-level variables API in document

Closes #36543

See merge request !13648

Resolve "Deleting of a GitLab Pages project results in "`PagesWorker.perform_in` cannot be called inside a transaction""

Closes #35072

See merge request !13631

API: do not set rel="next" pagination header when no records found

Closes #36618

See merge request !13629

Fixes the blown up emoji problem in notes

Closes #36448 and #36282

See merge request !13632

Fix project import to group when there are project milestones

Closes #35580

See merge request !13482

Change 'This issue is not confidential' to 'Not confidential'

See merge request !13607

Prevent horizontal scrolling in new sidebar when collapsed

Closes #36608 and #36507

See merge request !13638

Remove horizontal scroll on collapsed sidebar

Closes #36270

See merge request !13458

Fix project templates and add docs

Closes #36492

See merge request !13563

Fixed collapsed sidebar not showing fly-out menu

See merge request !13622

Fix milestone sidebar collapse button

Closes #36453

See merge request !13620

Fix commit list request appending 40 to offset

Closes #36569 and #36563

See merge request !13603

Only create commit GPG signature when necessary

See merge request !13561

Fix help page version image spec

Closes #36592

See merge request !13605

Cache Appearance instances in Redis

Closes #36066 and #31698

See merge request !13433
# Conflicts:
#	db/schema.rb

Cache the number of forks of a project

See merge request !13535

Use a separate table for storing push events

See merge request !12463

Fix race condition with dispatcher.js

See merge request !13377

Fixes icon sidebar expanding causing a jump in padding

Closes #36456

See merge request !13568

Merge branch '36442-images-in-issue-descriptions-no-longer-scale-to-the-width-of-their-container' into 'master'

Resolve "Images in issue descriptions no longer scale to the width of their container"

Closes #36442

See merge request !13586

Fix edit milestone path from group milestones list

Closes #36430

See merge request !13581

Fixes sticky class being removed when over-scrolling in Safari

Closes #36457

See merge request !13556

Don't depend on `Rails` for Redis configuration file paths

Closes #36514

See merge request !13575

Don't create event in Merge Request Create Service

Closes #36465

See merge request !13566
# Conflicts:
#	db/schema.rb

Fix the fly-out menu in the sidebar not displaying in Safari

Closes #36441

See merge request !13445

Add documentation for groups issue filtered search

Closes #36377

See merge request !13572

Make sure MySQL would not use CURRENT_TIMESTAMP as the default for timestamp columns

Closes #36405

See merge request !13560

Fix username autocomplete group name with no avatar alignment

Closes #36502

See merge request !13578

Fixed changed files dropdown not being shown

Closes #36479

See merge request !13554

Use border radius scss vars

See merge request !13360

Change Confidential Message When Visible - UI Polish

See merge request !13551

Many Repo Fixes

See merge request !13432