Document when some DAST variables were introduced

See merge request gitlab-org/gitlab!48214

Update info about GitLab 13.5 and earlier

See merge request gitlab-org/gitlab!48409

Merge branch '271401-ensure-we-don-t-show-warning-when-there-are-1000-epics-on-a-roadmap' into 'master'

Ensure we don't show warning when there are <1000 epics on a roadmap

See merge request gitlab-org/gitlab!47884

Remove "Details" from breadcrumb and JSON+JD on Group top page

See merge request gitlab-org/gitlab!47854

Start moving architecture page to development docs

See merge request gitlab-org/gitlab!48268

As part of migrating documentation from an external repository, create
the skeleton of where the developer documentation for the Kubernetes
Agent will live.

Remove translations from todolist that are synced

See merge request gitlab-org/gitlab!47929

Resolve "Add BETA warning to Phabricator Importer doc"

See merge request gitlab-org/gitlab!47978

Make fake aws_api_key obvious

See merge request gitlab-org/gitlab!48373

Fix functionality to add comments

See merge request gitlab-org/gitlab!48375

Remove jira imports resolver

See merge request gitlab-org/gitlab!48337

Auto approve users when User Cap setting is increased or set to nil

See merge request gitlab-org/gitlab!47033

If the :admin_new_user_signups_cap feature is enabled and the cap is
increased by an admin, users in blocked_pending_approval state should
be auto approved.

Add aggregation metrics for alert actions and incident actions

See merge request gitlab-org/gitlab!48087

Fix the interface of PopulateVulnerabilityHistoricalStatistics#perform

See merge request gitlab-org/gitlab!48366

Updated incorrect style guide link

See merge request gitlab-org/gitlab!48404

Fix future tense issues

See merge request gitlab-org/gitlab!48396

Remove ignore_column from Ci::JobArtifact

See merge request gitlab-org/gitlab!47722

Update deprecation information. I created a subheading instead of
a deprecation note because our note structure can't support showing
a code example - and the code example can't be taken out of this
section. So, subheading it is.

Fix future tense issues

See merge request gitlab-org/gitlab!48397

Do not fail import of merge request when unsupported diff note occurs

See merge request gitlab-org/gitlab!48189

Integrate site validation in profile library

See merge request gitlab-org/gitlab!48124

 * Add site validation status column
 * Add validation buttons
 * Integrate validation modal

Add "Seats in use" view to its own page

See merge request gitlab-org/gitlab!45382

Adds route and a controller
for Billing->Seat usage page.

Moves table to new page.

Add gl-button to haml button

See merge request gitlab-org/gitlab!48335

Update MR form to use plural field names

See merge request gitlab-org/gitlab!41402

Fix future tense issues

See merge request gitlab-org/gitlab!48382

Fix future tense issues

See merge request gitlab-org/gitlab!48381

Update icons to svg in several sort dropdowns

See merge request gitlab-org/gitlab!48092

Update Elasticsearch document for issues

See merge request gitlab-org/gitlab!46916

This change requires that the Elasticsearch
mapping has been updated using a data
migration. The json used to generate issue
documents is updated to send two new fields:
gitlab_migration_version and issues_access_level.

- Improve the UX around editing comments
- Add changelog