Update Node.js to 10.15.3 in CI template for Hexo

See merge request gitlab-org/gitlab-ce!25943

Externalize several strings in controllers/services/presenters

See merge request gitlab-org/gitlab-ce!27390

- app/services
- app/controllers
- app/presenters

Don't render artifact download links for builds with expired artifacts

See merge request gitlab-org/gitlab-ce!26753

Adds instance metrics to usage ping

Closes #53138

See merge request gitlab-org/gitlab-ce!27238

Remove EE-specific code from boards store (CE-backport)

See merge request gitlab-org/gitlab-ce!26924

Externalize strings in lib/gitlab/quick_actions

See merge request gitlab-org/gitlab-ce!27369

Autosave description in epics

See merge request gitlab-org/gitlab-ce!27296

When editing an epic, the progress was previously lost due to
lack of localstorage syncing code. This commit adds support for
localstorage sync.

Allow arrays to be specified for fields in graphql_query_for

Closes #60238

See merge request gitlab-org/gitlab-ce!27142

Helm DeleteCommand

See merge request gitlab-org/gitlab-ce!27348

Add pagination to notes and discussions docs

Closes #51616

See merge request gitlab-org/gitlab-ce!27401

Reporting SSL certificate verify errors in CI external config

See merge request gitlab-org/gitlab-ce!26750

Development docs: move some docs content from Handbook and improve content/headings

See merge request gitlab-org/gitlab-ce!27399

This is the backend part which just allows uninstalling Prometheus for
now.

Add badge-pill class on group member count

Closes #60026

See merge request gitlab-org/gitlab-ce!27019

Update dependency @gitlab/ui to ^3.3.0

See merge request gitlab-org/gitlab-ce!27321

Refactor review apps doco and CI landing page

See merge request gitlab-org/gitlab-ce!26886

Fix remove_source_branch merge request API handling

Closes #60530

See merge request gitlab-org/gitlab-ce!27392

- Externalize strings for desc and explanation
- Update PO file

Users attempting to set merge requests to `remove_source_branch` to
`false` would encounter an Error 500 because the UpdateService and API
checked `present?`, which would always return `false`. We now just
use `has_key?` to decide whether the parameter is present.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/60530

Fix URL that causes test_external_links to fail

See merge request gitlab-org/gitlab-ce!27384

https://gitlab.com/gitlab-com/gitlab-docs/-/jobs/196921364

Properly expire all pipeline caches when pipeline is deleted

Closes #60469

See merge request gitlab-org/gitlab-ce!27334

Forbid the usage of reload

Closes #60218

See merge request gitlab-org/gitlab-ce!27125

Remove multi-line suggestions feature flag

Closes #59178

See merge request gitlab-org/gitlab-ce!27219

Git FSCK has no timeout

Closes #53319

See merge request gitlab-org/gitlab-ce!27299

Add variable substitution in prometheus proxy API

See merge request gitlab-org/gitlab-ce!27226

- In prometheus proxy api, allow variables to be replaced. For example,
if 'up{env="%{ci_environment_slug}"}' is passed to the endpoint, it
becomes 'up{env="production"}' before being sent to prometheus.

When deleting a pipeline, only some of the cache structures were being
expired, but not the full pipeline list. We have to synchronously
schedule a pipeline cache expiration because the pipeline will be
deleted if the Sidekiq expiration job picks it up. To do this, properly
extract all the logic buried in the Sidekiq worker into a service, and
then call the service.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/60469

Split `.gitlab-ci.yml` into multiple includes

Closes #58521

See merge request gitlab-org/gitlab-ce!27116

Validate refs used in controllers don't have spaces

Closes #58572 and gitaly#1425

See merge request gitlab-org/gitlab-ce!24037

Added write_repository scope for personal access token

Closes #58847 and #51709

See merge request gitlab-org/gitlab-ce!26021

Docs: reorg Pages index

See merge request gitlab-org/gitlab-ce!27319