- Update to version 1.21.4:
* Add changelog for 1.21.4 (#28812)
* Render code block in activity tab (#28816) (#28818)
* Use refname:strip-2 instead of refname:short when syncing tags (#28797) (#28811)
* Rework markup link rendering (#26745) (#28803)
* Forbid removing the last admin user (#28337) (#28793)
* Fix links in issue card (#28806) (#28807)
* Fix `GetCommitStatuses` (#28787) (#28804)
* Use correct `has error` check for internal responses (#28796) (#28798)
* Fix nil pointer panic when exec some gitea cli command (#28791) (#28795)
* Fix when private user following user, private user will not be counted in his own view (#28037) (#28792)
* Update github.com/cloudflare/circl (#28789) (#28790)
* Speed up loading the dashboard on mysql/mariadb (#28546) (#28784)
* Modernize merge button (#28140) (#28786)
* Fix schedule tasks bugs (#28691) (#28780)
* Require token for GET subscription endpoint (#28765) (#28778)
* Assign pull request to project during creation (#28227) (#28775)
* Fix issue dependencies (#27736) (#28776)
* Fix button size in "attached header right" (#28770) (#28774)
* Fix `convert.ToTeams` on empty input (#28426) (#28767)
* Require token for GET subscription endpoint (#28765) (#28768)
* Show description as tooltip instead of title for labels (#28754) (#28766)
* Hide code related setting options in repository when code unit is disabled (#28631) (#28749)
* Add -F to commit search to treat keywords as strings (#28744) (#28748)
* Concatenate error in `checkIfPRContentChanged` (#28731) (#28737)
* Add download attribute to release attachments (#28739) (#28740)
* Suggest to use Type=simple for systemd service (#28717) (#28722)
* Fix incorrect URL for "Reference in New Issue" (#28716) (#28723)
* Avoid unnecessary 500 panic when a commit doesn't exist (#28719) (#28721)
* Improve frontend guideline (#28711) (#28713)
* Fix panic when parsing empty pgsql host (#28708) (#28709)
* Fix wrapping of label list (#28684) (#28688)
* Make template `DateTime` show proper tooltip (#28677) (#28683)
* Fix: system webhooks API bug (#28531) (#28666)
* Fix alpine package files are not rebuilt (#28638) (#28665)
* Upgrade xorm to new version which supported update join for all supported databases (#28590) (#28668)
* Avoid cycle-redirecting user/login page (#28636) (#28658)
* fix empty ref for cron workflow runs (#28640) (#28647)
* Remove unnecessary syncbranchToDB with tests (#28624) (#28629)
* Improve document for ARTIFACT_RETENTION_DAYS (#28646) (#28648)
* switch destination directory for apt signing keys (#28639) (#28642)
* Improve 1.21 document for Database Preparation (#28643) (#28644)
* Extend description for ARTIFACT_RETENTION_DAYS (#28626) (#28630)
* Use known issue IID to generate new PR index number when migrating from GitLab (#28616) (#28618)
* Refactor CORS handler (#28587) (#28611)
* Revert "improve possible performance bottleneck (#28547)" (#28593) (#28608)
* Fix the scroll behavior for emoji/mention list (#28597) (#28601)
* Fix flex container width (#28603) (#28605)
* Include heap pprof in diagnosis report to help debugging memory leaks (#28596) (#28599)
* Fix wrong due date rendering in issue list page (#28588) (#28591)
* Fix `status_check_contexts` matching bug (#28582) (#28589)
* Fix 405 method not allowed CORS / OIDC (#28583) (#28586)
* Fix 500 error of searching commits (#28576) (#28579)
* improve possible performance bottleneck (#28547) (#28578)
* Use information from previous blame parts (#28572) (#28577)
* Update mermaid for 1.21 (#28571)