v1.27.0

* BREAKING   
  * Feat(actions)!: improve support for reusable workflows (#37478)   
  * Use Content-Security-Policy: script nonce (#37232)

* SECURITY
  * Fix: various security fixes (#38406) (#38426)
  * Fix(security): harden access checks and migration validation (#38324) (#38400)
  * Fix: enforce public-only token scope and harden push options / locale parsing (#38323) (#38399)
  * Fix(pull): re-evaluate review official flag on target branch change (#38319) (#38402)
  * Fix(api): stop leaking private repo metadata after access revocation (#38321) (#38390)
  * Fix(lfs): require proof of possession for cross-repo objects (#38322) (#38389)
  * Fix(mirror): disable HTTP redirects on pull mirror sync (#38320) (#38367)
  * Fix: golang html template url escaping (#38363) (#38369)
  * Fix(release): validate web attachment renames against allowed types (#38314) (#38328)
  * Fix(release): gate draft release attachments on web download endpoints (#38318) (#38325)
  * Fix(deps): update module github.com/go-git/go-git/v5 to v5.19.1 [security] (#37786)
  * Fix(oauth): restrict introspection to the token's client (#38042)
  * Fix(api): don't expose private org membership via public_members (#38145)
  * Fix(actions): deny fork-PR cross-repo access via collaborative owner (#38214)
  * Fix(migrations): prevent path traversal in repository restore (#38215)

* FEATURES
  * Feat(actions): add workflow status badge modal (#38196)
  * Feat(actions): support owner-level and global scoped workflows (#38154)
  * Feat(api): support ref suffixes in compare (#38148)
  * Feat(actions): implement `jobs.<job_id>.continue-on-error` (#38100)
  * Feat(actions): show run status on browser tab favicon (#38071)
  * Feat(api): add token introspection and self-deletion endpoint (#37995)
  * Feat(api): add q parameter to list branches API for server-side filtering (#37982)
  * Feat(repo): split repository creation limit into user and org scopes (#37872)
  * Feat(actions): bulk delete, disable and enable runners in admin UI (#37869)
  * Feat(actions): List workflows that were executed once but got removed from the default branch (#37835)
  * Feat(org): add team visibility so org members can discover teams (#37680)
  * Feat: add raw diff/patch endpoint for repository comparisons (#37632)
  * Feat: Add avatar stacks (#37594)
  * Feat(actions): add job summaries (GITHUB_STEP_SUMMARY) (#37500)
  * Feat(web): Add Jupyter Notebook (.ipynb) Rendering Support (#37433)
  * Support for Custom URI Schemes in OAuth2 Redirect URIs (#37356)
  * Feat(orgs): Add search bar for organization members tab page (#37347)
  * Feat(api): Add assignees APIs (#37330)
  * Feat(api): Add GET /repos/{owner}/{repo}/actions/workflows/{workflow_id}/runs (#37196)
  * Serve OpenAPI 3.0 spec at /openapi.v1.json (#37038)
  * Add project column picker to issue and pull request sidebar (#37037)
  * Allow multiple projects per issue and pull requests (#36784)
  * Feat(ui): add "follow rename" to file commit history list (#34994)
  * Feat(ssh): auto generate additional ssh keys (#33974)

* ENHANCEMENTS
  * Enhance(actions): only create filtered-out workflow commit status for required contexts (#38371) (#38385)
  * Enhance: allow builtin default git config options to be overridden (#38172)
  * Enhance: allow MathML core elements (#38034)
  * Enhance(markup): improve issue title rendering (#37908)
  * Enhance(actions): set descriptive browser tab title on run view (#37870)
  * Enhance: Migrate remaining gopkg.in/yaml.v3 usages to go.yaml.in/yaml/v4 (#37866)
  * Enhance(actions): show workflow name from YAML instead of filename (#37833)
  * Feat(actions): add before/after to PR synchronize event payload (#37827)
  * Enhance(actions): add branch filters to run list (#37826)
  * Enhance(actions): Make Summary UI more beautiful with more infos (#37824)
  * Feat: add copy button to action step header, improve other copy buttons (#37744)
  * Fix(icon): use repo-forked icon to display forks count (#37731)
  * Feat(api): add sort and order query parameters to job list endpoints (#37672)
  * Feat(api): add last_sync to repository API (#37566)
  * Enhance: Adjust Workflow Graph styling (#37497)
  * Improve code editor text selection and clean up lint enablement (#37474)
  * Add mirror auth updates to repo edit API and settings (#37468)
  * Replace `olivere/elastic` with REST API client, add OpenSearch support (#37411)
  * Feat: Add default PR branch update style setting (#37410)
  * Fix inconsistent disabled styling on logged-out repo header buttons (#37406)
  * Allow fast-forward-only merge when signed commits are required (#37335)
  * Enhance styling in actions page (#37323)
  * Fix: improve actions status icons and texts (#37206)
  * Make Markdown fenced code block work with more syntaxes (#37154)
  * Fix: Sort action run jobs by JobID and Name with matrix examples (#37046)
  * Add API endpoint to reply to pull request review comments (#36683)

* PERFORMANCE
  * Perf(actions): debounce runner heartbeat writes and throttle task picks (#38281) (#38368)
  * Perf(web): sort the action_run query by a repo-scoped index when possible (#38155)
  * Perf: Various performance regression fixes (#38078)
  * Perf: extend action `c_u` index to include `created_unix` for faster dashboard feeds (#38076)
  * Batch-load related data in actions run, job, and task API endpoints (#37032)

* BUGFIXES
  * Fix(util): reject invalid characters between time-estimate units (#38416) (#38423)
  * Fix: represent a deleted assignee team as a Ghost team (#38413) (#38419)
  * Fix(turnstile): route CAPTCHA verification through the configured proxy (#38412) (#38420)
  * Fix: refresh pull request merge box when the commit status is pending (#38410) (#38411)
  * Fix: actions task state concurrent update (#38405) (#38409)
  * Fix(actions): keep workflow run trailing on one row with long branch names (#38382) (#38403)
  * Fix(web): use locale-aware date formatting for contribution calendar tooltips (#38398) (#38401)
  * Fix: co-author detection (#38392) (#38397)
  * Fix: incorrect co-author detection on commit page (#38386) (#38387)
  * Fix(ui): restore commits table column widths (#38379) (#38383)
  * Fix: minio init check (#38355) (#38361)
  * Fix: org project view assignee list (#38357) (#38360)
  * Fix(actions): release claimed task if context is cancelled during `FetchTask` (#38343) (#38347)
  * Fix(actions): make runner list pagination order deterministic (#38313) (#38327)
  * Fix: Improve since/until when counting commits for X-Total-Count (#38243) (#38304)
  * Fix(actions): prevent chevron overlap with log text when timestamps are enabled (#38227) (#38307)
  * Fix(workflows): branch protection status checks fail when workflow uses on: paths filter (#38237) (#38302)
  * Fix(oauth2): persist linkAccountData during auto-link 2FA flow (#38274) (#38295)
  * Fix(actions): allow Actions bot to push to protected branches (#38284) (#38293)
  * Fix(actions): include all aggregable run statuses in status filter (#38280) (#38287)
  * Fix(archiver): use serializable repo-archive queue payload (#38273) (#38283)
  * Fix: update npm dependencies, fix misc issues (#38257)
  * Fix(api): respect since/until when counting commits for X-Total-Count (#38204)
  * Fix: codemirror regressions (#38248)
  * Fix(api): support HEAD requests on all API GET endpoints (#38245)
  * Fix(actions): Cleanup workflow status badge code (#38241)
  * Fix(web): Correctly align the "disabled" label on larger workflow names (#38240)
  * Fix(actions): don't swallow HTML entities into linkified URLs (#38239)
  * Fix(packages): accept npm "repository" and "bin" in string form (#38236)
  * Fix(actions): fix 500 error when canceling a canceling task (#38223)
  * Fix(deps): update module golang.org/x/image to v0.43.0 [security] (#38219)
  * Fix(mssql): convert legacy DATETIME columns to DATETIME2 (#38216)
  * Fix(api): deny private org member enumeration via /members (#38213)
  * Fix(actions): ensure all waiting jobs get runners in large workflows (#38200)
  * Fix(deps): update go dependencies (#38194)
  * Fix(deps): update npm dependencies (#38193)
  * Fix(cli): default must-change-password to false for bot users (#38175)
  * Fix(actions): show run index in run view and fix summary graph height (#38165)
  * Fix: csp (#38162)
  * Fix(deps): update npm dependencies (#38123)
  * Fix(mssql): expand legacy issue and comment long-text columns (#38120)
  * Fix(packages): validate debian distribution and component names (#38116)
  * Fix(packages): validate module version in goproxy ParsePackage (#38104)
  * Fix(deps): update dependency esbuild to v0.28.1 [security] (#38097)
  * Fix: git push hook post receive (#38089)
  * Fix(ui): prevent commit status popup overflowing its row (#38081)
  * Fix: validate gem name in rubygems parseMetadataFile (#38061)
  * Fix: commit display name (#38057)
  * Fix: csp regressions (#38047)
  * Fix: api error message (#38031)
  * Fix(deps): update npm dependencies (#38029)
  * Fix: pgsql lint (#38022)
  * Fix(indexer): fix assignee filters in issue search (#38021)
  * Fix: various dropdown problems (#38020)
  * Fix: refactor git error handling and make archive streaming handle non-existing commit id (#38007)
  * Fix: raise git required version to 2.13 (#37996)
  * Fix: remove "no-transfrom" from the cache-control header (#37985)
  * Fix(deps): update module github.com/google/go-github/v87 to v88 (#37971)
  * Fix: use committer time where ever possible as default (#37969)
  * Fix(deps): update npm dependencies, remove nolyfill (#37968)
  * Fix(deps): update go dependencies (#37967)
  * Fix(pull): preserve squash message trailers and additional commit messages (#37954)
  * Fix(deps): update module golang.org/x/image to v0.41.0 [security] (#37904)
  * Fix: support ##[command] log prefix in action run UI (#37882)
  * Fix(deps): update module github.com/google/go-github/v86 to v87 (#37845)
  * Fix(deps): update npm dependencies (#37844)
  * Fix(deps): update go dependencies (#37841)
  * Fix(frontend): resolve Vite assets by manifest source path (#37836)
  * Fix(locales): Replace hardcoded strings (#37788)
  * Fix(packages): render markdown links relative to linked repo (#37676)
  * Fix: persist mirror repository metadata (#37519)
  * Fix cmd tests by mocking builtin paths (#37369)
  * Add `form-fetch-action` to some forms, fix "fetch action" resp bug (#37305)
  * Feat: execute post run cleanup when workflow is cancelled (#37275)
  * Fix `relative-time` error and improve global error handler (#37241)
  * Refactor flash message and remove SanitizeHTML template func (#37179)

* TESTING
  * Test(e2e): fix race in pdf file render test (#38380) (#38381)
  * Test: compare key file contents instead of `FileInfo` in `TestInitKeys` (#38330) (#38331)
  * Test: speed up two tests (#37905)
  * Test: Fix random failure test (#37887)
  * Test: fix flaky `issue-comment` close test (#37880)
  * Test: enable WAL for sqlite integration tests (#37861)
  * Test: fix flaky `TestResourceIndex` and reduce its runtime (#37847)
  * Test: run `TestAPIRepoMigrate` offline via a local clone source (#37817)
  * Ci: shard tests and reduce redundant work (#37618)
  * Test(e2e): run playwright via container (#37300)
  * Remove external service dependencies in migration tests (#36866)

* BUILD
  * Fix(actions): authenticate snapcraft before nightly remote build (#38252)
  * Ci: cap Elasticsearch heap in db-tests (#37816)
  * Build(snap): publish nightly version to snapcraft via actions (#37814)
  * Ci: split pgsql shards into plain jobs, dedupe setup actions (#37802)
  * Ci: narrow files-changed frontend filter (#37749)
  * Ci: add `zizmor` to `lint-actions` (#37720)
  * Chore: clean up "contrib" dir (#37690)
  * Fix: snap build (main branch) (#37685)
  * Ci: Also lint json5 files (#37659)
  * Feat(editor): broaden language detection in web code editor (#37619)
  * Build: update pnpm to v11 (#37591)
  * Refactor(deps): migrate from `nektos/act` fork to `gitea/runner` (#37557)
  * Refactor: lint bare `fill`/`stroke` colors, add vars for git graph color series (#37543)
  * Update go js py dependencies (#37525)
  * Ci: lint PR titles with commitlint (#37498)
  * Chore: upgrade Go version in devcontainer image to 1.26 (#37374)
  * Update GitHub Actions to latest major versions (#37313)
  * Update go js dependencies (#37312)
  * Fail vite build on rolldown warnings via NODE_ENV=test (#37270)
  * Remove htmx (#37224)
  * Replace custom Go formatter with `golangci-lint fmt` (#37194)
  * Refactor htmx and fetch-action related code (#37186)
  * Integrate renovate bot for all dependency updates (#37050)
  * Build(sign): move to sigstore (#38250)

* DOCS
  * Docs: update changelog for 1.26.3 & 1.26.4 (#38178)
  * Docs: fix duplicated word in foreachref doc comment (#38161)
  * Docs: Clarify criteria for becoming a merger (#38113)
  * Docs: Publish TOC Election Result 2026 (#38111)
  * Docs: mark openapi3 as autogenerated in attributes (#37963)
  * Docs: add development setup guide (#37960)

* MISC
  * Revert(sign): restore gpg (#38251)
  * Refactor: replace legacy `delete-button` with `link-action` (#38143)
  * Refactor(actions): read runner capabilities from proto field (#38068)
  * Refactor(api): clarify APIError message usage and fix legacy lint error (#38012)
  * Refactor: Use db.Get[] instead of db.GetEngine(ctx).Get(bean) to avoid zero value fetching wrong database record (#37977)
  * Fix(deps): update go dependencies (#37851)
  * Ci: Fix sync PR labels from the conventional-commit title (#37784) (#37825)
  * Ci: tweak `files-changed`, add `free-disk-space` (#37819)
  * Fix(deps): update module golang.org/x/crypto to v0.52.0 [security] (#37806)
  * Test(e2e): add comment, release, star, PR and fork tests (#37800)
  * Chore: simplify issue and pull request templates (#37799)
  * Chore: Update giteabot to fix failure when backport (#37789)
  * Fix(api): handle partial failures in push mirror synchronization gracefully (#37782)
  * Fix(deps): update module gitlab.com/gitlab-org/api/client-go/v2 to v2.26.0 (#37771)
  * Ci: split giteabot workflow (#37770)
  * Fix(deps): update npm dependencies (#37768)
  * Refactor(waitgroup): replace Add/Done goroutines with WaitGroup.Go (#37764)
  * Fix(deps): update module google.golang.org/grpc to v1.81.1 (#37762)
  * Ci: fix cache-related issues (#37761)
  * Chore: fix tests (#37760)
  * Fix(deps): update module github.com/google/go-github/v85 to v86 (#37754)
  * Fix(deps): update npm dependencies (#37753)
  * Fix(deps): update go dependencies (#37752)
  * Chore(deps): update action dependencies (#37751)
  * Fix(markup): wrap indented code blocks for the code-copy button (#37748)
  * Chore(db): introduce db.Session and db.EngineMigration interfaces (#37746)
  * Feat(web): also display PR counts in repo list (#37739)
  * Refactor(glob): use strings.Builder for regexp compilation (#37730)
  * Chore(doctor): remove four obsolete doctor check implementations (#37728)
  * Refactor(org): simplify owner-team org repo creation logic (#37727)
  * Refactor: move `workflowpattern` into `modules/actions` (#37717)
  * Chore: clean up tests (#37715)
  * Style: misc UI fixes (#37691)
  * Ci: add shellcheck linter (#37682)
  * Fix: catch and fix more lint problems (#37674)
  * Fix(deps): update dependency mermaid to v11.15.0 [security], add e2e test (#37662)
  * Fix(deps): update npm dependencies (#37647)
  * Ci(renovate): update Go import paths on major bumps (#37641)
  * Fix(deps): update go dependencies (major) (#37639)
  * Chore(deps): update action dependencies (major) (#37638)
  * Fix(deps): update module code.gitea.io/sdk/gitea to v0.25.0 (#37637)
  * Fix(deps): update npm dependencies (#37636)
  * Refactor(log): replace log.Critical with log.Error (#37624)
  * Build(deps): bump fast-uri from 3.1.0 to 3.1.2 (#37616)
  * Feat(oauth): Support AWS Cognito OAuth2 provider (#37607)
  * Chore(deps): update action dependencies (#37603)
  * Ci: allow `chore` type in PR title lint (#37575)
  * Refactor: only reset a database table when the table's data was changed (#37573)
  * Ci: increase renovate frequency and fix RENOVATE_ALLOWED_POST_UPGRADE_COMMANDS (#37565)
  * Refactor: use modernc sqlite driver as default (#37562)
  * Docs: fix 4 typos in CHANGELOG.md (#37549)
  * Fix(deps): update go dependencies (#37541)
  * Chore(deps): update action dependencies (#37540)
  * Refactor pull request view (6) (#37522)
  * Fix: redirect early CLI console logger to stderr (#37507)
  * Refactor "flex-list" to "flex-divided-list" (#37505)
  * Refactor compare diff/pull page (1) (#37481)
  * Refactor pull request view (4) (#37451)
  * Update 1.26.1 changelog in main (#37442)
  * Refactor: use named `Permission` field in `Repository` struct instead of anonymous embedding (#37441)
  * Refactor: serve site manifest via `/assets/site-manifest.json` endpoint (#37405)
  * Remove IsValidExternalURL/IsAPIURL and use IsValidURL at call sites (#37364)
  * Update `Block a user` form (#37359)
  * Move review request functions to a standalone file (#37358)
  * Feat(security): set X-Content-Type-Options: nosniff by default (#37354)
  * Enable strict TypeScript, add `errorMessage` helper (#37292)
  * Refactor frontend `tw-justify-between` layouts to `flex-left-right` (#37291)
  * Update Nix flake (#37284)
  * Fix Repository transferring page (#37277)
  * Remove `SubmitEvent` polyfill (#37276)
  * Remove dead code identified by `deadcode` tool (#37271)
  * Upgrade go-git to v5.18.0 (#37268)
  * Don't add useless labels which will bother changelog generation (#37267)
  * Move heatmap to first-party code (#37262)
  * Tests/integration: simplify code (#37249)
  * Add pagination and search box to org teams list (#37245)
  * Remove error returns from crypto random helpers and callers (#37240)
  * Add `ExternalIDClaim` option for OAuth2 OIDC auth source (#37229)
  * Refactor: simplify ParseCatFileTreeLine and catBatchParseTreeEntries (#37210)
  * Refactor "htmx" to "fetch action" (#37208)
  * Update go js py dependencies (#37204)
  * Add comment for the design of "user activity time" (#37195)
  * Remove outdated RunUser logic (#37180)
  * Models/fixtures: add "DO NOT add more test data" comment to all yml fixture files (#37150)
  * Update javascript dependencies (#37142)
  * Update go dependencies (#37141)
  * Frontport changelog of v1.26.0-rc0 (#37138)
  * Introduce `ActionRunAttempt` to represent each execution of a run (#37119)
  * Workflow Artifact Info Hover (#37100)
  * Extend issue context popup beyond markdown content (#36908)
  * Add bulk repository deletion for organizations (#36763)
  * Feat: Add bypass allowlist for branch protection (#36514)

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