...by enabling the option in merge request approval setting

Enable merge trains project-level config by default

See merge request gitlab-org/gitlab-ee!14429

Drop merge train option when parallelization is ready.

ok

ok

ok

GitLab Managed App ensure helm version uses tls opts

Closes #63694

See merge request gitlab-org/gitlab-ce!30654

Build cascading train refs  for parallel execution of Pipelines for merge trains

See merge request gitlab-org/gitlab-ee!14296

Display boards filter bar on mobile

Closes #45864

See merge request gitlab-org/gitlab-ce!30120

Display boards filter bar on mobile

See merge request gitlab-org/gitlab-ee!14663

Currently, pipelines for merge trains run on refs/merge paths,
however, this doesn't allow us to run pipeline in parallel by chaning
merge refs, so we'll introduce a refs/train for this specific purpose.

Docs: Pages - refactor "Custom domain / SSL" documentation

Closes #47585, #60612, #44606, and #63753

See merge request gitlab-org/gitlab-ce!30363

- Move steps to new doc
- Move all concepts to different docs

Add Namespace#feature_available no-op

Closes #60908

See merge request gitlab-org/gitlab-ce!30641

Flag `Namespace#feature_available?` as override

See merge request gitlab-org/gitlab-ee!14650

Resolve "Add size 96 to avatar sizes in avatar.scss"

Closes #64499

See merge request gitlab-org/gitlab-ce!30671

Add a note about implicit Dockerfile serverless runtime

See merge request gitlab-org/gitlab-ce!30672

expand (CD) acronym

See merge request gitlab-org/gitlab-ce!30646

Add example of ENV variables for image and services.

See merge request gitlab-org/gitlab-ce!27320

Verified snippet works with 11.10.1

Rename "discussions" to "threads" in docs

See merge request gitlab-org/gitlab-ce!30037

Skeleton for Productivity Analytics

See merge request gitlab-org/gitlab-ee!14183

- Mount vue app

Filter Geo proxied data from api_json.log

See merge request gitlab-org/gitlab-ce!30687

Currently the base64-encoded value of the push-to-secondary data is
saved in `api_json.log`, and this can easily be hundreds of
megabytes. We should filter this from the logs.

Fix whitespace in user and misc docs

See merge request gitlab-org/gitlab-ce!30605

Many code blocks are 4spaced, and they render in GitLab
without coloring as a result, even though they are
fenced with a language label. If in a list, other items
woll render as being in a code block too, even if not
meant to. This fixes all these issues, and cleans up
minor whitespace issues in /user, /security, /ssh
and /migrate_ci_to_ce docs.

Add more file extentions to file type icon class

See merge request gitlab-org/gitlab-ce!30316