Add index to sent_notifications table to prevent statement timeouts

Resolve "Issue boards selector only shows first 100 boards"

See merge request gitlab-org/gitlab!27467

Move Maskable concern to Ci namespace

See merge request gitlab-org/gitlab!27305

Optimize projects_mirrored_with_pipelines_enabled query

See merge request gitlab-org/gitlab!27110

Implements bare stages skeleton for jira importer

See merge request gitlab-org/gitlab!27118

Remove ci_file_based_cache feature flag

See merge request gitlab-org/gitlab!27406

Fix directory paths incorrectly encoding URLs

Closes #209075

See merge request gitlab-org/gitlab!27397

Upgrade unparser and parser gems

See merge request gitlab-org/gitlab!27381

Update issue link and quarantine spec

See merge request gitlab-org/gitlab!27476

Resolve "Fix showing only free namespaces when applying licenses"

Closes #208894

See merge request gitlab-org/gitlab!27356

Separate approval setting entities into own class files

See merge request gitlab-org/gitlab!27423

Recreate ancestor milestones when moving projects

See merge request gitlab-org/gitlab!27262

Jira importer will eventually import a lot of various data:
issues, comments, attachments, labels, custom fields, etc. We
can organize this data to be imported in stages thus parallelizing
the process. This change adds the initial structure of the
import process.

Add missing helpers in background migration

See merge request gitlab-org/gitlab!27483

Monitoring for Elasticsearch incremental updates buffer queue

See merge request gitlab-org/gitlab!27384

Closes https://gitlab.com/gitlab-org/gitlab/-/issues/209075

Move HasVariable and NewHasVariable concerns to CI namespace

See merge request gitlab-org/gitlab!27306

HasVariable concern is only used by CI variable classes

Merge branch '211514-flaky-failure-in-qa-specs-features-browser_ui-3_create-repository-add_file_template_spec-rb' into 'master'

Resolve "Flaky failure in qa/specs/features/browser_ui/3_create/repository/add_file_template_spec.rb | Create File templates user adds LICENSE via file template Mozilla Public License 2.0"

Closes #211514

See merge request gitlab-org/gitlab!27439

Replace underscore/lodash in subscriptions

Closes #210269

See merge request gitlab-org/gitlab!27444

This metric is used to track the size of updates that need
to be synchronized to Elasticsearch. Since this is a custom queue and
we're not using Sidekiq we needed to implement our own custom monitoring
for it.

This MR just sets a gauge every minute in a cron worker which will
ultimately be available in Prometheus. Later we will build a chart for
this.

See https://gitlab.com/gitlab-org/gitlab/issues/207095

Migrate bot_type data to user_type column

Closes #208897

See merge request gitlab-org/gitlab!26981

Remove elasticsearch_use_routing feature flag

See merge request gitlab-org/gitlab!27398

Fix shared examples naming

See merge request gitlab-org/gitlab!27246

Merge branch '208736-api-calls-for-1st-class-vulnerabilities-should-be-configurable-per-project' into 'master'

Make API calls for 1st Class Vulnerabilities configurable per project

See merge request gitlab-org/gitlab!26321

Migrate ee/spec/javascripts/sidebar/ to Jest

Closes #194307

See merge request gitlab-org/gitlab!26959

With new generalized `user_type` column
usage of separate bot_type is not justified.
So we make bots functionality dependent on
user_type column

Update icons in Sentry Error Tracking list for ignored/resolved errors

See merge request gitlab-org/gitlab!27125

Adjust migration specs to not rely on model version

See merge request gitlab-org/gitlab!27329

Store daily code coverage

See merge request gitlab-org/gitlab!24695

Merge branch '208865-follow-up-from-follow-pajamas-on-security-configuration-link-icons' into 'master'

Remove unused pipeline-help-path from sec config

Closes #208865

See merge request gitlab-org/gitlab!26436

Adds clarifications about CI apps

See merge request gitlab-org/gitlab!27388

Fix access to logs when multiple pods exist

See merge request gitlab-org/gitlab!27008