Because we already set the value to true in the previous migration, this
feature was switched on inadvertently in GitLab 12.4. This migration
toggles it back off to ensure we don't inadvertently block legitimate
users. The admin will have to re-enable it in the application settings.

In GitLab 11.0 (see
https://gitlab.com/gitlab-org/gitlab-foss/issues/40973 and
https://gitlab.com/gitlab-org/omnibus-gitlab/merge_requests/2237), we
disabled Rack Attack by default in Omnibus.

We inadvertently enabled by default in GitLab 12.4 via
https://gitlab.com/gitlab-org/gitlab/merge_requests/16463. This commit
introduces a database migration to restore the default to off.

This this doesn't touch the existing settings, so admins will have to
know to switch it off if they upgraded to GitLab 12.4.

Closes https://gitlab.com/gitlab-org/gitlab/issues/34212

Use $CI_DEFAULT_BRANCH in CI templates

Closes #33601

See merge request gitlab-org/gitlab!18915

Since not every repository uses a branch named `master` as its default
branch, we've implemented the $CI_DEFAULT_BRANCH variable to allow us
to implement CI template logic for default branches of any name.

Now's the time to use that power in our own templates!

https://gitlab.com/gitlab-org/gitlab/issues/33601

Fix Misleading title for Pages Access Control in project settings

See merge request gitlab-org/gitlab!18192

Add missing breadcrumb in Project > Settings > Integrations

See merge request gitlab-org/gitlab!18990

Contributors graphs migration to echarts

See merge request gitlab-org/gitlab!16677

Contributors charts were migrated to echarts,
old code dependent on charts.js was removed

Resolve "Fix Kubernetes help text link"

Closes #34944

See merge request gitlab-org/gitlab!19121

Switch quick actions to use Zoom Meetings table and model

See merge request gitlab-org/gitlab!18620

Make `Job`, `Bridge` and `Default` to be truly inheritable

Closes #34518

See merge request gitlab-org/gitlab!18867

This changes `Job`, `Bridge` and `Default`
to use `Inheritable` to inherit the configuration.

Shared example ensure that all fields are annotated
with `inherit:` and does have matching type when inherited.

Since the `Default:` is shared, it requires that
inheritable fields to be also added to `Job` and `Bridge`.

Refactor search_tab? -> show_user_search_tab?

See merge request gitlab-org/gitlab!19205

Hide labels from issue board cards

See merge request gitlab-org/gitlab!18533

Hide role picker from profile page

See merge request gitlab-org/gitlab!19085

Include puma logs alongside rails logs in GDK

See merge request gitlab-org/gitlab!19082

Currently puma logs are emitted to a different location than rails logs.
In development environments, having a single stream of logs for puma
and rails simplifies things and ensures that developers will see puma
errors, instead of having them emitted to a file that is not usually
checked.

Resolve "Remove the `container_registry_smart_delete` feature flag."

Closes #32319

See merge request gitlab-org/gitlab!19049

Add documentation about the sync CI stage

Closes #34890

See merge request gitlab-org/gitlab!19101

Record sidekiq queuing latency

See merge request gitlab-org/gitlab!19005

Adds a Prometheus histogram, `sidekiq_jobs_queue_duration_seconds` for
recording the duration that a Sidekiq job is queued for before being
executed.

This matches the scheduling_latency_s field emitted from structured
logging for the same purpose.

Update quarantined test so that it runs (although it's still quarantined)

See merge request gitlab-org/gitlab!19203

This commit fixes comments given on a merge request

Enable the HttpOnly flag for experimentation_subject_id cookie

Closes #34851

See merge request gitlab-org/gitlab!19189

CloudFormation template for creating EKS clusters

See merge request gitlab-org/gitlab!17036

Fix `RSpec/ScatteredSetup` rubocop failure

See merge request gitlab-org/gitlab!19207

Return merge-request state in API

See merge request gitlab-org/gitlab!18888

- expose `has_conflicts` and `mergeable_discussions_state` in API
- add unit tests for the change

Merge branch '34408-reducing-the-data-being-loaded-per-design-on-first-load-of-design-management' into 'master'

[BE] Reduce the data being loaded per Design on first load

See merge request gitlab-org/gitlab!18997

- added selection by id and ids

Support query for multiple states

See merge request gitlab-org/gitlab!18518

Populate CI variables from params

Closes #24146

See merge request gitlab-org/gitlab!19023

When running a new pipeline on a
project, this commit gives the
feature of populating ci vars
from a url query string.

Workaround for QA tests when job_log_json flag is enabled

Closes #34901, #34900, and #34899

See merge request gitlab-org/gitlab!19145