Update CHANGELOG.md for 12.9.0

[ci skip]

changelogs/unreleased/10429_set_dast_default_git_strategy_to_none.yml

----
-title: Project repositories are no longer cloned by default when running DAST
-merge_request: 25320
-author:
-type: performance

changelogs/unreleased/10526-smartcard_support_different_hostname.yml

----
-title: Make hostname configurable for smartcard authentication
-merge_request: 26411
-author:
-type: added

changelogs/unreleased/11821-insights-back-json-fix.yml

----
-title: Fix Insights displaying JSON on back navigation
-merge_request: 25801
-author:
-type: fixed

changelogs/unreleased/118503.yml

----
-title: Fix infinite spinner on error detail page
-merge_request: 26188
-author:
-type: fixed

changelogs/unreleased/119107-respect-dnt-for-experiments.yml

----
-title: 'Use DNT: 1 as an experiment opt-out mechanism'
-merge_request: 22100
-author:
-type: other

changelogs/unreleased/119429-decouple-webhooks-from-integrations-within-project-settings.yml

----
-title: Decouple Webhooks from Integrations within Project > Settings
-merge_request: 23136
-author:
-type: changed

changelogs/unreleased/12577-generate-smaller-image-sizes-for-designs.yml

----
-title: Add id and image_v432x230 columns to design_management_designs_versions
-merge_request: 22860
-author:
-type: changed

changelogs/unreleased/13005-allow-to-use-issue-issues-and-merge_request-merge_requests-for-issu.yml

----
-title: Allow issues/merge_requests as an issuable_type in Insights configuration
-merge_request: 26061
-author:
-type: added

changelogs/unreleased/13717-es-indexing-without-index.yml

----
-title: 'Elasticsearch: when index is absent warn users and disable index button'
-merge_request: 25254
-author:
-type: fixed

changelogs/unreleased/13810-cluster-environments-table.yml

----
-title: Add responsivity to cluster environments table
-merge_request: 25501
-author:
-type: fixed

changelogs/unreleased/14080-slack-multiple-channels.yml

----
-title: Allow multiple Slack channels for notifications
-merge_request: 24132
-author:
-type: added

changelogs/unreleased/15103-markup-tips-for-markdown-shown-while-editing-wiki-pages-in-other-fo.yml

----
-title: Markup tips for Markdown shown while editing wiki pages in other formats
-merge_request: 25974
-author:
-type: fixed

changelogs/unreleased/16131-wiki-titles-with-special-characters.yml

----
-title: Tweak wiki page title handling
-merge_request: 25647
-author:
-type: changed

changelogs/unreleased/193170-fix-deployment-ref-validation.yml

----
-title: Use of sha instead of ref when creating a new ref on deployment creation.
-merge_request: 23170
-author:
-type: fixed

changelogs/unreleased/195871-fix-duplicate-weight-change-notes.yml

----
-title: Ensure weight changes no longer render duplicate system notes
-merge_request: 26014
-author:
-type: fixed

changelogs/unreleased/195969-multi-select-on-issue-boards-inconsistent-erratic.yml

----
-title: Improved selection of multiple cards
-merge_request:
-author: Gwen_
-type: fixed

changelogs/unreleased/196609-remove-staging.yml

----
-title: Remove staging from commit workflow in the Web IDE
-merge_request: 26151
-author:
-type: removed

changelogs/unreleased/196646-replace-underscore-with-lodash-for-app-assets-javascripts-badges.yml

----
-title: Replace underscore with lodash for ./app/assets/javascripts/badges
-merge_request: 24966
-author: Jacopo Beschi @jacopo-beschi
-type: changed

changelogs/unreleased/196648-replace-_-with-lodash.yml

----
-title: Replaced underscore with lodash for app/assets/javascripts/lib
-merge_request: 25042
-author: Shubham Pandey
-type: other

changelogs/unreleased/196688-replace-underscore-with-lodash-for-app-assets-javascripts-deploy_k.yml

----
-title: Replace underscore with lodash for ./app/assets/javascripts/deploy_keys
-merge_request: 24965
-author: Jacopo Beschi @jacopo-beschi
-type: changed

changelogs/unreleased/196718-remove-filter-epic-counts.yml

----
-title: Remove visibility check from epic descendant counts
-merge_request: 25975
-author:
-type: changed

changelogs/unreleased/196832-drop-feature-toggle.yml

----
-title: Optimize project representation in large imports
-merge_request: !22598
-author:
-type: performance

changelogs/unreleased/196883-repository-link-grpc-graceful-failure.yml

----
-title: Ensure RepositoryLinkFilter handles Gitaly failures gracefully
-merge_request: 26531
-author:
-type: performance

changelogs/unreleased/197227-milestone-tab-async.yml

----
-title: Search issues in GraphQL API by milestone title and assignees
-merge_request: 25794
-author:
-type: added

changelogs/unreleased/197480-remove-package-file_type.yml

----
-title: Remove unused file_type column from packages_package_files
-merge_request: 26527
-author:
-type: changed

changelogs/unreleased/197790-hide-private-commit-emails-in-notification-settings.yml

----
-title: Hide the private commit email in Notification email list
-merge_request: 25099
-author: briankabiro
-type: changed

changelogs/unreleased/197918-add-package-type-param-to-group-packages-api.yml

----
-title: Add package_type as a filter option to the group packages list API endpoint
-merge_request: 26833
-author:
-type: added

changelogs/unreleased/197918-add-package-type-to-project-packages-api.yml

----
-title: Add package_type as a filter option to the packages list API endpoint
-merge_request: 25816
-author:
-type: added

changelogs/unreleased/197960-package-detail-activity.yml

----
-title: Adds new activity panel to package details page
-merge_request: 25534
-author:
-type: added

changelogs/unreleased/198050-frontend-pagination-in-log-explorer.yml

----
-title: More logs entries are loaded when logs are scrolled to the top
-merge_request: 26254
-author:
-type: added

changelogs/unreleased/198052-in-the-jobs-page-the-allowed-to-fail-badge-looks-like-an-error.yml

----
-title: Hides the "Allowed to fail" tag on jobs that are successful
-merge_request: 25458
-author:
-type: changed

changelogs/unreleased/198325-migrate-design-mentions-to-db-table.yml

----
-title: Migrate mentions for design notes to design_user_mentions DB table
-merge_request: 23704
-author:
-type: changed

changelogs/unreleased/198326-migrate-commit-notes-mentions-to-db-table.yml

----
-title: Migrate mentions for commit notes to commit_user_mentions DB table
-merge_request: 23859
-author:
-type: changed

changelogs/unreleased/198338-migrate-mr-mentions-to-db-table.yml

----
-title: Migrate mentions for merge requests to DB table
-merge_request: 25826
-author:
-type: changed

changelogs/unreleased/198391-add-user-plan-and-trial-status-to-api.yml

----
-title: Expose `plan` and `trial` to `/users/:id` endpoint
-merge_request: 25151
-author:
-type: added

changelogs/unreleased/198604-monaco-snippets.yml

----
-title: Replaced ACE with Monaco editor for Snippets
-merge_request: 25465
-author:
-type: added

changelogs/unreleased/19880-sort-closed-issues-by-recently-closed.yml

----
-title: Sort closed issues on issue boards using time of closing
-merge_request: 23442
-author: briankabiro
-type: changed

changelogs/unreleased/199197-make-has-been-reverted-check-cheaper.yml

----
-title: Improve performance of the "has this commit been reverted?" check
-merge_request: 26784
-author:
-type: performance

changelogs/unreleased/199220-hide-snippet-blob-search.yml

----
-title: Remove and deprecate snippet content search
-merge_request: 26359
-author:
-type: removed

changelogs/unreleased/199220-snippet-index-desc.yml

----
-title: Add trigram index on snippet description
-merge_request: 26341
-author:
-type: performance

changelogs/unreleased/199220-snippet-search.yml

----
-title: Include snippet description as part of snippet title search (basic search).
-merge_request: 25961
-author:
-type: added

changelogs/unreleased/199370-move-deploy_keys-to-cicd.yml

----
-title: Moved Deploy Keys from Repository to CI/CD settings.
-merge_request: 25444
-author:
-type: changed

changelogs/unreleased/199400-send-email-notifications-for-generic-alerts.yml

----
-title: Send alert emails for generic incident alerts
-merge_request: 24414
-author:
-type: added

changelogs/unreleased/199422-maximum-size-for-gitlab-pages-says-to-set-it-to-0-for-unlimited-bu.yml

----
-title: Allow 0 to be set for pages maximum size per project/group to indicate unlimited
-  size
-merge_request: 25677
-author:
-type: fixed

changelogs/unreleased/199438-fix-logs-encoding.yml

----
-title: Fix 500 error caused by Kubernetes logs not being encoded in UTF-8
-merge_request: 25999
-author:
-type: fixed

changelogs/unreleased/199442-explore-projects.yml

----
-title: Handle Gitaly failure when fetching license
-merge_request: 24310
-author:
-type: fixed

changelogs/unreleased/199790-approval-settings-target-branch-api.yml

----
-title: Filter rules by target_branch in approval_settings
-merge_request: 26439
-author:
-type: added

changelogs/unreleased/199908-use-only-the-first-line-of-the-commit-message-on-chat-service-noti.yml

----
-title: Use only the first line of the commit message on chat service notification
-merge_request: 25224
-author: Takuya Noguchi
-type: changed

changelogs/unreleased/199998-container-expiration-policy-settings-hide-form-on-api-error-2.yml

----
-title: Container expiration policy settings hide form on API error
-merge_request: 26303
-author:
-type: fixed

changelogs/unreleased/200107-avatar-content-type-does-not-match-file-extension.yml

----
-title: Replace avatar and favicon upload type consistency validation with content whitelist validation
-merge_request: 25401
-author:
-type: changed

changelogs/unreleased/20083-conflict-between-project-s-permission-settings-description-and-actu.yml

----
-title: Update project's permission settings description to reflect actual permissions
-merge_request: 25523
-author:
-type: other

changelogs/unreleased/201427-issue-board-due-date-picker-unable-to-select-custom-year-or-month.yml

----
-title: Added the multiSelect option to stop event propagation when clicking on the
-  dropdown
-merge_request: 24611
-author: Gwen_
-type: fixed

changelogs/unreleased/201771.yml

----
-title: Replace content_viewer_spec setTimeouts with semantic actions / events
-merge_request:
-author: Oregand
-type: other

changelogs/unreleased/201931-white-syntax-highlighting-theme-for-web-ide.yml

----
-title: Fix White syntax highlighting theme in Monaco to closely match the Pygments theme.
-merge_request: 25966
-author:
-type: fixed

changelogs/unreleased/201999-define-formatter-y-axis.yml

----
-title: Add properties to the dashboard definition to customize y-axis format
-merge_request: 25785
-author:
-type: added

changelogs/unreleased/201999-formatter-column-chart.yml

----
-title: Use y-axis format configuration in column charts
-merge_request: 26356
-author:
-type: changed

changelogs/unreleased/202008-disable-drag-from-epic-tree-dropdown-button.yml

----
-title: Disable draggable behavior on the epic tree chevron (collapse/expand) button
-merge_request: 25729
-author:
-type: changed

changelogs/unreleased/202094-enable-ff-by-default.yml

----
-title: Store first commit's authored_date for value stream calculation on merge
-merge_request: 26885
-author:
-type: changed

changelogs/unreleased/202233-migrating-fa-spinner-whithin-top-level-projects.yml

----
-title: Update loader for various project views
-merge_request: 25755
-author: Phellipe K Ribeiro
-type: other

changelogs/unreleased/202271-migrate-fa-spinner-for-notifications_dropdown-js.yml

----
-title: migrate fa spinner for notification_dropdown.js
-merge_request: 25141
-author: minghuan
-type: other

changelogs/unreleased/202274-migrate-fa-spinner-to-spinner.yml

----
-title: New loading spinner for attachemnt uploads via discussion boxes
-merge_request: 25057
-author: Philip Jonas
-type: changed

changelogs/unreleased/202426-editor-lite-theme-preference.yml

----
-title: In single-file editor set syntax highlighting theme according to user's preference
-merge_request: 26606
-author:
-type: changed

changelogs/unreleased/204723-nomethoderror-undefined-method-term_agreements-for-nil-nilclass.yml

----
-title: Require a logged in user to accept or decline a term
-merge_request: 24771
-author:
-type: fixed

changelogs/unreleased/204774-quick-actions-executed-in-multiline-inline-code.yml

----
-title: Fix quick actions executing in multiline inline code when placed on its own line
-merge_request: 24933
-author: Pavlo Dudchenko
-type: fixed

changelogs/unreleased/204801-add-instance-to-services.yml

----
-title: Add instance column to services table
-merge_request: 25714
-author:
-type: other

changelogs/unreleased/204858-update-self-monitor-environments.yml

----
-title: Add migration to create self monitoring project environment
-merge_request: 25289
-author:
-type: added

changelogs/unreleased/205184-change-omniauth-log-format-to-json.yml

----
-title: Change OmniAuth log format to JSON
-merge_request: 25086
-author:
-type: other

changelogs/unreleased/205399-add-tooltip-to-file-tree-state.yml

----
-title: Add tooltip to modification icon in the file tree
-merge_request: 27158
-author:
-type: other

changelogs/unreleased/205435.yml

----
-title: Clean up conditional `col-` classes in `nav_dropdown_button.vue`
-merge_request: 25312
-author:
-type: other

changelogs/unreleased/205596-empty-state-for-code-review-analytics.yml

----
-title: Empty state for Code Review Analytics
-merge_request: 25793
-author:
-type: added

changelogs/unreleased/206899-move-system-metrics-chart-group-to-the-top-of-the-default-dashbord.yml

----
-title: Put System Metrics chart group first in default dashboard
-merge_request: 26355
-author:
-type: other

changelogs/unreleased/207087-blocked-status-issue.yml

----
-title: Don't show issue as blocked on the issue board if blocking issue is closed
-merge_request: 25817
-author:
-type: fixed

changelogs/unreleased/207126-more-descriptive-error-messages-in-migration-helpers.yml

----
-title: Improve error messages of failed migrations
-merge_request: 25457
-author:
-type: changed

changelogs/unreleased/207181-status-page-settings-backend.yml

----
-title: Create table & setup operations endpoint for Status Page Settings
-merge_request: 25863
-author:
-type: added

changelogs/unreleased/207203-forward-deployment-ui.yml

----
-title: Added Drop older active deployments project setting
-merge_request: 25520
-author:
-type: added

changelogs/unreleased/207216-lfs-batch-upload-fix.yml

----
-title: Mark existing LFS object for upload for forks
-merge_request: 26344
-author:
-type: fixed

changelogs/unreleased/207223-fix-self-monitoring-project.yml

----
-title: Fix self monitoring project link
-merge_request: 25516
-author:
-type: fixed

changelogs/unreleased/207237-snippet-edit-description-vue.yml

----
-title: Added Blob Description Edit component in Vue
-merge_request: 26762
-author:
-type: added

changelogs/unreleased/207242-vsibility-level-vue.yml

----
-title: Added Edit Visibility Vue compoenent for Snippet
-merge_request: 26799
-author:
-type: added

changelogs/unreleased/207249-prevent-editing-weight-to-scroll-to-the-top.yml

----
-title: Prevent editing weight to scroll to the top.
-merge_request: 26613
-author: Gilang Gumilar
-type: fixed

changelogs/unreleased/207367-change-link-icons-on-security-configuration-page-to-follow-design-.yml

----
-title: Resolve Change link-icons on security configuration page to follow design system
-merge_request: 26340
-author:
-type: other

changelogs/unreleased/207390-pages-api-case-insensitive-domain-lookup.yml

----
-title: 'Add index on LOWER(domain) for pages_domains'
-merge_request: 25664
-author:
-type: other

changelogs/unreleased/207455-frontend-fix-epic-blform.yml

----
-title: Fix "Add an epic" form
-merge_request: 26003
-author:
-type: fixed

changelogs/unreleased/207462-scoped-labels-rendering-is-broken-in-todos.yml

----
-title: Fix scoped labels rendering in To-Do List
-merge_request: 26146
-author:
-type: fixed

changelogs/unreleased/207464-prevent-unauthorized-user-to-lock-an-issue-when-the-sidebar-is-col.yml

----
-title: Prevent unauthorized users to lock an issue from the collapsed sidebar.
-merge_request: 26324
-author: Gilang Gumilar
-type: fixed

changelogs/unreleased/207468-note-confidential-attribute.yml

----
-title: Add confidential attribute to notes table
-merge_request:
-author:
-type: other

changelogs/unreleased/207536-retried-jobs-are-not-able-to-find-knapsack-report.yml

----
-title: Keep needs association on the retried build
-merge_request: 25888
-author:
-type: fixed

changelogs/unreleased/207623-fix-code-search-pagination.yml

----
-title: Fix code search pagination on a custom branch
-merge_request: 25984
-author:
-type: fixed

changelogs/unreleased/207808-geo-bug-filedownloaddispatchworker-may-sometimes-excessively-resyn.yml

----
-title: 'Use uncached SQL queries for Geo long-running workers'
-merge_request: 26187
-author:
-type: fixed

changelogs/unreleased/207927-validate-actor-user-against-codeowners.yml

----
-title: Validate actor against CODEOWNERS entries
-merge_request:
-author:
-type: fixed

changelogs/unreleased/207962-deploy-ecs.yml

----
-title: Add CI template to deploy to ECS
-merge_request: 26371
-author:
-type: added

changelogs/unreleased/207976-stop-markdown-caching-of-non-markdown-snippet-content.yml

----
-title: Fix Snippet content incorrectly caching
-merge_request: 25985
-author:
-type: fixed

changelogs/unreleased/208128-add-external-pull-request-to-existing-object-relations.yml

----
-title: Fix ImportFailure when restore ci_pipelines:external_pull_request relation
-merge_request: 26041
-author:
-type: fixed

changelogs/unreleased/208151-code-review-analytics-shows-no-data-for-mrs-in-review-for-less-tha.yml

----
-title: 'Code Review Analytics: Fix review time display'
-merge_request: 26057
-author:
-type: fixed

changelogs/unreleased/208153-add-anchor-to-related-issues-and-related-merge-requests.yml

----
-title: Add anchor tags to related issues and related merge requests.
-merge_request: 26756
-author: Gilang Gumilar
-type: added

changelogs/unreleased/208167-bigfix-unable-to-fork-project-to-the-same-namespace.yml

----
-title: Allow to fork to the same namespace and different path via API call
-merge_request: 26062
-author:
-type: fixed

changelogs/unreleased/208242-scoped-label-rendering-in-emails-is-broken.yml

----
-title: Fix scoped labels rendering in emails
-merge_request: 26347
-author:
-type: fixed

changelogs/unreleased/208258-update-documentation-and-common_metrics-yml-to-match-new-y_axis-pr.yml

----
-title: Update charts documentation and common_metrics.yml to enable data formatting
-merge_request: 26048
-author:
-type: added

changelogs/unreleased/208403-attachment-file-not-found.yml

----
-title: Ensure valid mount point is used by attachments on notes
-merge_request: 26849
-author:
-type: fixed