Fix broken table of content links

Closes #39471

See merge request gitlab-org/gitlab-ce!15034

Clarify the language around External Group membership with SAML SSO to clarify…

See merge request gitlab-org/gitlab-ce!15042

Make local_branches OPT_OUT

See merge request gitlab-org/gitlab-ce!15045

Add path attribute to WikiFile class

Closes #39420

See merge request gitlab-org/gitlab-ce!15019

Fix the incorrect value being used to set GL_USERNAME on hooks

See merge request gitlab-org/gitlab-ce!15038

Avoid calling underlying methods on non-existing repos

See merge request gitlab-org/gitlab-ce!14962

Validate username/pw for Jiraservice, require them in the API

Closes #36621

See merge request gitlab-org/gitlab-ce!15025

Fixes #39420

Automatic configuration settings page

Closes #25142

See merge request gitlab-org/gitlab-ce!13850

Clarify the language around External Group membership with SAML SSO to clarify that this will NOT add users to GitLab Groups.

Closes #25142

Moves placeholders components into shared folder with documentation.

See merge request gitlab-org/gitlab-ce!14964

Move all rugged operation for ff_merge inside Gitlab::Git

Closes gitaly#683

See merge request gitlab-org/gitlab-ce!15011

Add case insensitive branches search

Closes #35199

See merge request gitlab-org/gitlab-ce!14995

Resolve "Remove overzealous tooltips in projects page tabs"

Closes #39419

See merge request gitlab-org/gitlab-ce!15017

Remove filter icon from search bar

Closes #32318

See merge request gitlab-org/gitlab-ce!14966

We also delete some unused code related to the aforementioned feature.

Remove superfluous namespace from cluster settings

See merge request gitlab-org/gitlab-ce!14987

Support `Gitaly::User`'s gl_username field

See merge request gitlab-org/gitlab-ce!15016

Don't rename groups/projects that aren't reserved anymore

Closes #39387

See merge request gitlab-org/gitlab-ce!15029

In https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/12932 we
freed up some names. But we were still renaming them.

Memoize GitLab logger to reduce open file descriptors

Closes gitlab-ee#3664

See merge request gitlab-org/gitlab-ce!15007

Suggest to rename the remote for existing repositories

See merge request gitlab-org/gitlab-ce!14970

We see that in gitlab-org/gitlab-ee#3664 that if we log a lot of
data in Sidekiq workers, the number of open file descriptors
reaches over 1000. To avoid this, we can memoize the logger per
thread via RequestStore.

Closes gitlab-org/gitlab-ee#3664

Update groups API documentation

Closes #38922

See merge request gitlab-org/gitlab-ce!15024

Fix the writing of invalid environment refs

Closes #39182

See merge request gitlab-org/gitlab-ce!14993

Resolve "Pages API"

Closes #23000

See merge request gitlab-org/gitlab-ce!13917

Circuitbreaker backoff and retries

Closes #37383 and #38231

See merge request gitlab-org/gitlab-ce!14933

Add new files & directories in the multi-file editor

Closes #38614

See merge request gitlab-org/gitlab-ce!14839

Hides pipeline duration in commit box when it is zero (nil)

Closes #32788

See merge request gitlab-org/gitlab-ce!14979

Clean up `new-sidebar`

See merge request gitlab-org/gitlab-ce!14978

Fix code review discussion action buttons

Closes #38891

See merge request gitlab-org/gitlab-ce!14801

Fix performance of sticky.js

Closes #39332

See merge request gitlab-org/gitlab-ce!14976