This page needs a lot of work. Clean up the subheadings. Add in
missing pieces. Reconstruct missing instructions. Better crosslinks.
Remove outdated images.

Remove please from Code Review doc

See merge request gitlab-org/gitlab!77446

Track version of Elasticsearch server used by self hosted clients

See merge request gitlab-org/gitlab!77365

Rename routes for project services to "integrations"

See merge request gitlab-org/gitlab!77376

Fix label dropdown item alignment with color

See merge request gitlab-org/gitlab!77427

Allow cross-db transaction for Build#drop_with_exit_code!

See merge request gitlab-org/gitlab!77440

Re-wording to improve clarity

See merge request gitlab-org/gitlab!77368

Fix typo in Import docs

See merge request gitlab-org/gitlab!77406

Make User profile / Chat translatable

See merge request gitlab-org/gitlab!77433

Rollout FF create_project_namespace_on_project_create enabled by default

See merge request gitlab-org/gitlab!75868

Fix nil actor errors in Sentry API handler

See merge request gitlab-org/gitlab!77340

Allow hidden package files to be downloaded

See merge request gitlab-org/gitlab!77291

Modify installable status.
Enable gitlab api to return the hidden package files.

Changelog: changed

When dropping a build with this method, it wraps the execution with
a transaction.

If this build;
- Configured as auto-retry
- Has a pipeline related to an MR
- Has a TODO with that MR
Then Ci::RetryBuildService;
- Retries the job
- Closes the TODO

And those two updates should not be in a single transaction because
they refer to different DBs.

The next step is to remove this cross-db transaction.

DRY supported ssh key types

See merge request gitlab-org/gitlab!77374

Changelog: changed

Add HTTP status to LFS push client error messages

See merge request gitlab-org/gitlab!77334

E2E: Validate issue comments are migrated

See merge request gitlab-org/gitlab!77359

Remove outdated GitLab version from Conversion doc

See merge request gitlab-org/gitlab!77409

MR: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/77427

Adding instructions on how to setup Pages for AWS

See merge request gitlab-org/gitlab!77382

Remove old GitLab versions from Release docs

See merge request gitlab-org/gitlab!77408

Document access control for a seperate GitLab pages server

See merge request gitlab-org/gitlab!77093

Removed outdated GitLab versions from Editor docs

See merge request gitlab-org/gitlab!77413

Advanced Search: Use reverse filename index

See merge request gitlab-org/gitlab!77226

Add /health_status, /clear_health_status quick actions

See merge request gitlab-org/gitlab!77215

Add the ability to Delete an Agent from the actions dropdown

See merge request gitlab-org/gitlab!77199

Add `Gitlab::SSHPublicKey.supported_types` method.
This method returns the names of ssh keys GitLab supports.
`Gitlab::SSHPublicKey` should be the source of truth about such
information.
`SUPPORTED_KEY_TYPES` has the same information so I reused the method
to prevent duplication that would allow easier to extend the list of
supported keys.
See https://gitlab.com/gitlab-org/gitlab/-/issues/213259.