Hide behind feature flag

Use timecop to lock date to 20200312 for certs

Closes #210557

See merge request gitlab-org/gitlab!27239

Performance development docs: Link to mass insert

See merge request gitlab-org/gitlab!27083

Optimize Project related count service desk enabled

See merge request gitlab-org/gitlab!27115

Cleanup what services are running on Gitaly standalone

See merge request gitlab-org/gitlab!26060

Fix capitalization on HAProxy

See merge request gitlab-org/gitlab!27131

Added JSON License

See merge request gitlab-org/gitlab!26122

Add docs for the edit custom metric link

See merge request gitlab-org/gitlab!26518

Add deprecation note for Severity and Confidence levels

See merge request gitlab-org/gitlab!26984

Docs: Fix Gitaly GRPC_TRACE example command

See merge request gitlab-org/gitlab!26934

Fix flaky create_snippet_spec.rb

Closes #209892

See merge request gitlab-org/gitlab!27181

Documentation for ModSecurity UI settings

See merge request gitlab-org/gitlab!25077

- Removes mentions of feature flag
- Expands options on how to disable ModSecurity
- Adds the option of enabling/disabling thu UI.

Validate `sha_attribute` type casting with `BulkInsertSafe`

See merge request gitlab-org/gitlab!27214

Enable workhorse upload acceleration for Project Import uploads via API

See merge request gitlab-org/gitlab!26914

Fix typos and punctuation on github_importer doc

See merge request gitlab-org/gitlab!26986

Remove snippet content search

Closes #199220

See merge request gitlab-org/gitlab!26359

Improve migration docs re: random jobs

See merge request gitlab-org/gitlab!26879

Revert "Merge branch '21801-remigrate-epic-user-mentions' into 'master'"

See merge request gitlab-org/gitlab!27198

Prevent using `with_lock_retries` within `change` method

See merge request gitlab-org/gitlab!27064

Document how to convert your Jenkins agents to Runners

Closes #208382

See merge request gitlab-org/gitlab!26865

Add notes on shared fleet

Apply suggestion to doc/ci/jenkins/index.md

Make gitlab.com code to get past linter

Apply suggestion to doc/ci/jenkins/index.md

Add Agents vs. Runners docs

Add notes on shared fleet

Apply suggestion to doc/ci/jenkins/index.md

Make gitlab.com code to get past linter

Apply suggestion to doc/ci/jenkins/index.md

Remove duplicated section

Curse this linter

Apply suggestion to doc/ci/jenkins/index.md

Apply suggestion to doc/ci/jenkins/index.md

Fix flaky pipeline spec

See merge request gitlab-org/gitlab!27126

Create open_project_tracker_data table migration

See merge request gitlab-org/gitlab!26966

Improve UX project/group ci variables

See merge request gitlab-org/gitlab!26098

Added fallback tolerance to epic tree drag

See merge request gitlab-org/gitlab!26920

Add ability to edit health status in Issue sidebar

See merge request gitlab-org/gitlab!25371

Reorder exported relations by primary_key

See merge request gitlab-org/gitlab!27117

Document implicit schema for JSON logging

See merge request gitlab-org/gitlab!26508

Doc: Move the settings and index docs to CI folder

See merge request gitlab-org/gitlab!26859

Docs backend guides GraphQL

See merge request gitlab-org/gitlab!23247

- the data table will be used for storing data specific
for the service

To ensure that data is properly serialised and deserialized
from DB representation

Resolve "Differentiate between errors/failures in xUnit result"

See merge request gitlab-org/gitlab!23476

Move HasRef concern inside Ci namespace

See merge request gitlab-org/gitlab!27056