Bug fix release for 8.5.1:
https://github.com/mermaid-js/mermaid/releases

Docs: add subsection for Explore Projects

Closes #201928

See merge request gitlab-org/gitlab!30665

Adds documentation for the 'Explore Projects' feature

Add admin dashboard table

See merge request gitlab-org/gitlab!31084

Alert Management alerts Slack Notifications

See merge request gitlab-org/gitlab!33017

- Setup helpers and other translations
- Move human name to helper

Alert Managament: Change sorting order

See merge request gitlab-org/gitlab!33642

Migration helper to sync trigger partitioned tables

See merge request gitlab-org/gitlab!32884

When creating a partitioned table using migration helpers, attach a
trigger to the source table that will copy all insert/update/delete
operations to the partitioned copy.

Add count of all alert issues to usage ping

See merge request gitlab-org/gitlab!33220

Add count of all alerts to usage ping and add a second
metric for manually created alerts

Resolve "Follow-up from "Update Azure OmniAuth documentation.""

See merge request gitlab-org/gitlab!33992

Provide guidance on techniques for shrinking docker image sizes

See merge request gitlab-org/gitlab!33906

Update oauth2 to 1.4.4 fixing faraday constraint

See merge request gitlab-org/gitlab!33999

Allow wiki pages with +<> characters in title to be saved

See merge request gitlab-org/gitlab!33803

A page's `title` will be returned from Gollum/Gitaly with any +<>
characters changed to -, whereas the `path` preserves these characters.

Previously, if a title had one of these characters in it, this method
would inaccurately return true, as we would be comparing `my+page` with
`my page` (after unhyphenization).

https://gitlab.com/gitlab-org/gitlab/-/issues/218230

Filter pipelines by status

See merge request gitlab-org/gitlab!32151

Create the pipeline status token
for filtering pipelines by status.
Add specs for new token and update
query params.

Add documentation on configuring go modules projects

See merge request gitlab-org/gitlab!33901

Change to use the gitlab-styles UpdateLargeTable cop

See merge request gitlab-org/gitlab!33507

- also remove the exception on add_column_concurrently

Add additional languages to proofreaders

Closes manage#17140

See merge request gitlab-org/gitlab!33997

Fixes an unsatisfiable constraint in the Gemfile.lock at the moment,
where oauth2 wants < 0.16.0 but we are already at 0.17.3

Adjust wrong column reference for ResetMergeStatus (background job)

See merge request gitlab-org/gitlab!33899

Find diff_files using file_identifer_hash if available

See merge request gitlab-org/gitlab!33579

[GraphQL] Lookahead optimizations for merge requests

See merge request gitlab-org/gitlab!32373

This uses lookahead to preload associations we know we are going to
need.

To ensure this works, the keyset connection is updated to support
pre-loaded associations This enables results sets that are already in
memory to be efficiently handled without making extra unnecessary
queries.

"proofreaders needed"

Updates Auto DevOps docker version usage to 19.03.11

See merge request gitlab-org/gitlab!33664

- Updates version on Build, Code Quality and performance jobs
- Updates docs.

Describe authoritative external links

See merge request gitlab-org/gitlab!28343

Update release maintenence/upgrade documentation

Closes #219221 and gitlab-com/support/support-team-meta#2287

See merge request gitlab-org/gitlab!32802

Review documentation page: /ee/policy/maintenance.html

Update Azure OmniAuth documentation.

Closes #219129

See merge request gitlab-org/gitlab!33937

Add preconnect tag for Snowplow

Closes #220499

See merge request gitlab-org/gitlab!33959