| route-pattern | /_view_fragments/voltron/pull_requests/show/:user_id/:repository/:id/pull_request_layout(.:format) |
| route-controller | voltron_pull_requests_fragments |
| route-action | pull_request_layout |
| fetch-nonce | v2:eda24701-78cf-f2b5-911d-3935ace1626b |
| current-catalog-service-hash | ae870bc5e265a340912cde392f23dad3671a0a881730ffdadd82f2f57d81641b |
| request-id | 995E:FE622:602D3C:8421AC:6A62DA2E |
| html-safe-nonce | 984e921d773c118fa92ef83a0cd1bc583658236df51ea3db54806680c1937bb0 |
| visitor-payload | eyJyZWZlcnJlciI6IiIsInJlcXVlc3RfaWQiOiI5OTVFOkZFNjIyOjYwMkQzQzo4NDIxQUM6NkE2MkRBMkUiLCJ2aXNpdG9yX2lkIjoiMjU4MjY2MDk4NDczNDkzMTUwMiIsInJlZ2lvbl9lZGdlIjoiaWFkIiwicmVnaW9uX3JlbmRlciI6ImlhZCJ9 |
| visitor-hmac | ca124620261ba3ac211af83665a9e407a45eee0c4f1e61319fdf1fffa6e84cd6 |
| hovercard-subject-tag | pull_request:3225059443 |
| github-keyboard-shortcuts | repository,pull-request-list,pull-request-conversation,pull-request-files-changed,copilot |
| google-site-verification | Apib7-x98H0j5cPqHWwSMm6dNU4GmODRoqxLiDzdx9I |
| octolytics-url | https://collector.github.com/github/collect |
| analytics-location | ///voltron/pull_requests_fragments/pull_request_layout |
| fb:app_id | 1401488693436528 |
| apple-itunes-app | app-id=1477376905, app-argument=https://github.com/_view_fragments/voltron/pull_requests/show/microsoft/TypeScript/63066/pull_request_layout |
| twitter:image | https://opengraph.githubassets.com/b110b2af7c513c0c45ecc22e975e917818aa56562571c8727450430453b1a097/microsoft/TypeScript/pull/63066 |
| twitter:card | summary_large_image |
| og:image | https://opengraph.githubassets.com/b110b2af7c513c0c45ecc22e975e917818aa56562571c8727450430453b1a097/microsoft/TypeScript/pull/63066 |
| og:image:alt | This is a massive PR in prep for deprecating ES5 and making "the current year" be the default target (#62196, #62198).
It does these things:
All tests that had been getting an implied ta... |
| og:image:width | 1200 |
| og:image:height | 600 |
| og:site_name | GitHub |
| og:type | object |
| og:author:username | jakebailey |
| hostname | github.com |
| expected-hostname | github.com |
| None | df33b1b61ee7b9a0af988199bfc3503c9c1acafb1f1d40e1f140ea7c84f890dd |
| turbo-cache-control | no-cache |
| go-import | github.com/microsoft/TypeScript git https://github.com/microsoft/TypeScript.git |
| octolytics-dimension-user_id | 6154722 |
| octolytics-dimension-user_login | microsoft |
| octolytics-dimension-repository_id | 20929025 |
| octolytics-dimension-repository_nwo | microsoft/TypeScript |
| octolytics-dimension-repository_public | true |
| octolytics-dimension-repository_is_fork | false |
| octolytics-dimension-repository_network_root_id | 20929025 |
| octolytics-dimension-repository_network_root_nwo | microsoft/TypeScript |
| turbo-body-classes | logged-out env-production page-responsive |
| disable-turbo | false |
| browser-stats-url | https://api.github.com/_private/browser/stats |
| browser-errors-url | https://api.github.com/_private/browser/errors |
| release | d41cd1bdb290013455c0ac430fa755621733f5eb |
| ui-target | full |
| theme-color | #1e2327 |
| color-scheme | light dark |
| Skip to content | https://github.com/microsoft/TypeScript/pull/63066#start-of-content |
|
| https://github.com/ |
|
Sign in
| https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fmicrosoft%2FTypeScript%2Fpull%2F63066 |
| GitHub CopilotWrite better code with AI | https://github.com/features/copilot |
| GitHub Copilot appDirect agents from issue to merge | https://github.com/features/ai/github-app |
| MCP RegistryNewIntegrate external tools | https://github.com/mcp |
| ActionsAutomate any workflow | https://github.com/features/actions |
| CodespacesInstant dev environments | https://github.com/features/codespaces |
| IssuesPlan and track work | https://github.com/features/issues |
| Code ReviewManage code changes | https://github.com/features/code-review |
| Code QualityEnforce quality at merge | https://github.com/features/code-quality |
| GitHub Advanced SecurityFind and fix vulnerabilities | https://github.com/security/advanced-security |
| Code securitySecure your code as you build | https://github.com/security/advanced-security/code-security |
| Secret protectionStop leaks before they start | https://github.com/security/advanced-security/secret-protection |
| Why GitHub | https://github.com/why-github |
| Documentation | https://docs.github.com |
| Blog | https://github.blog |
| Changelog | https://github.blog/changelog |
| Marketplace | https://github.com/marketplace |
| View all features | https://github.com/features |
| Enterprises | https://github.com/enterprise |
| Small and medium teams | https://github.com/team |
| Startups | https://github.com/enterprise/startups |
| Nonprofits | https://github.com/solutions/industry/nonprofits |
| App Modernization | https://github.com/solutions/use-case/app-modernization |
| DevSecOps | https://github.com/solutions/use-case/devsecops |
| DevOps | https://github.com/solutions/use-case/devops |
| CI/CD | https://github.com/solutions/use-case/ci-cd |
| View all use cases | https://github.com/solutions/use-case |
| Healthcare | https://github.com/solutions/industry/healthcare |
| Financial services | https://github.com/solutions/industry/financial-services |
| Manufacturing | https://github.com/solutions/industry/manufacturing |
| Government | https://github.com/solutions/industry/government |
| View all industries | https://github.com/solutions/industry |
| View all solutions | https://github.com/solutions |
| AI | https://github.com/resources/articles?topic=ai |
| Software Development | https://github.com/resources/articles?topic=software-development |
| DevOps | https://github.com/resources/articles?topic=devops |
| Security | https://github.com/resources/articles?topic=security |
| View all topics | https://github.com/resources/articles |
| Customer stories | https://github.com/customer-stories |
| Events & webinars | https://github.com/resources/events |
| Ebooks & reports | https://github.com/resources/whitepapers |
| Business insights | https://github.com/solutions/executive-insights |
| GitHub Skills | https://skills.github.com |
| Documentation | https://docs.github.com |
| Customer support | https://support.github.com |
| Community forum | https://github.com/orgs/community/discussions |
| Trust center | https://github.com/trust-center |
| Partners | https://github.com/partners |
| View all resources | https://github.com/resources |
| GitHub SponsorsFund open source developers | https://github.com/open-source/sponsors |
| Security Lab | https://securitylab.github.com |
| Maintainer Community | https://maintainers.github.com |
| Accelerator | https://github.com/open-source/accelerator |
| GitHub Stars | https://stars.github.com |
| Archive Program | https://archiveprogram.github.com |
| Topics | https://github.com/topics |
| Trending | https://github.com/trending |
| Collections | https://github.com/collections |
| Enterprise platformAI-powered developer platform | https://github.com/enterprise |
| GitHub Advanced SecurityEnterprise-grade security features | https://github.com/security/advanced-security |
| Copilot for BusinessEnterprise-grade AI features | https://github.com/features/copilot/copilot-business |
| Premium SupportEnterprise-grade 24/7 support | https://github.com/enterprise/premium-support |
| Pricing | https://github.com/pricing |
| Search syntax tips | https://docs.github.com/search-github/github-code-search/understanding-github-code-search-syntax |
| documentation | https://docs.github.com/search-github/github-code-search/understanding-github-code-search-syntax |
|
Sign in
| https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fmicrosoft%2FTypeScript%2Fpull%2F63066 |
|
Sign up
| https://github.com/signup?ref_cta=Sign+up&ref_loc=header+logged+out&ref_page=%2F%3Cuser-name%3E%2F%3Crepo-name%3E%2Fvoltron%2Fpull_requests_fragments%2Fpull_request_layout&source=header-repo&source_repo=microsoft%2FTypeScript |
| Reload | https://github.com/microsoft/TypeScript/pull/63066 |
| Reload | https://github.com/microsoft/TypeScript/pull/63066 |
| Reload | https://github.com/microsoft/TypeScript/pull/63066 |
| Please reload this page | https://github.com/microsoft/TypeScript/pull/63066 |
|
microsoft
| https://github.com/microsoft |
| TypeScript | https://github.com/microsoft/TypeScript |
|
Notifications
| https://github.com/login?return_to=%2Fmicrosoft%2FTypeScript |
|
Fork
13.6k
| https://github.com/login?return_to=%2Fmicrosoft%2FTypeScript |
|
Star
110k
| https://github.com/login?return_to=%2Fmicrosoft%2FTypeScript |
|
Code
| https://github.com/microsoft/TypeScript |
|
Issues
5k+
| https://github.com/microsoft/TypeScript/issues |
|
Pull requests
21
| https://github.com/microsoft/TypeScript/pulls |
|
Actions
| https://github.com/microsoft/TypeScript/actions |
|
Projects
| https://github.com/microsoft/TypeScript/projects |
|
Models
| https://github.com/microsoft/TypeScript/models |
|
Wiki
| https://github.com/microsoft/TypeScript/wiki |
|
Security and quality
0
| https://github.com/microsoft/TypeScript/security |
|
Insights
| https://github.com/microsoft/TypeScript/pulse |
|
Code
| https://github.com/microsoft/TypeScript |
|
Issues
| https://github.com/microsoft/TypeScript/issues |
|
Pull requests
| https://github.com/microsoft/TypeScript/pulls |
|
Actions
| https://github.com/microsoft/TypeScript/actions |
|
Projects
| https://github.com/microsoft/TypeScript/projects |
|
Models
| https://github.com/microsoft/TypeScript/models |
|
Wiki
| https://github.com/microsoft/TypeScript/wiki |
|
Security and quality
| https://github.com/microsoft/TypeScript/security |
|
Insights
| https://github.com/microsoft/TypeScript/pulse |
| jakebailey | https://github.com/jakebailey |
| microsoft:main | https://github.com/microsoft/TypeScript/tree/main |
| jakebailey:es-current-year-prep | https://github.com/jakebailey/TypeScript/tree/es-current-year-prep |
| Conversation | https://github.com/microsoft/TypeScript/pull/63066 |
| Commits6 (6) | https://github.com/microsoft/TypeScript/pull/63066/commits |
| Checks | https://github.com/microsoft/TypeScript/pull/63066/checks |
| Files changed | https://github.com/microsoft/TypeScript/pull/63066/files |
| Update tests in prep for ES5 deprecation, target default change | https://github.com/microsoft/TypeScript/pull/63066#top |
| jakebailey | https://github.com/jakebailey |
| microsoft:main | https://github.com/microsoft/TypeScript/tree/main |
| jakebailey:es-current-year-prep | https://github.com/jakebailey/TypeScript/tree/es-current-year-prep |
|
| https://github.com/jakebailey |
| jakebailey | https://github.com/jakebailey |
| Jan 29, 2026 | https://github.com/microsoft/TypeScript/pull/63066#issue-3872526907 |
| #62196 | https://github.com/microsoft/TypeScript/issues/62196 |
| #62198 | https://github.com/microsoft/TypeScript/issues/62198 |
| Please reload this page | https://github.com/microsoft/TypeScript/pull/63066 |
| jakebailey | https://github.com/jakebailey |
| January 29, 2026 11:55 | https://github.com/microsoft/TypeScript/pull/63066#commits-pushed-978193e |
|
| https://github.com/jakebailey |
| Set target for tests with implied target from module | https://github.com/microsoft/TypeScript/pull/63066/commits/978193e55fa9a686d6e254c0625ef9fe3b12398c |
| 978193e | https://github.com/microsoft/TypeScript/pull/63066/commits/978193e55fa9a686d6e254c0625ef9fe3b12398c |
|
| https://github.com/jakebailey |
| Make all es5 tests also test es2015 | https://github.com/microsoft/TypeScript/pull/63066/commits/a82be55a6230c047642f4edcc87f3f16436b6a8f |
| a82be55 | https://github.com/microsoft/TypeScript/pull/63066/commits/a82be55a6230c047642f4edcc87f3f16436b6a8f |
|
| https://github.com/jakebailey |
| Explicitly mark tests with target, module | https://github.com/microsoft/TypeScript/pull/63066/commits/b8600f0f07f134103ff36049a223a16eca5f1366 |
| b8600f0 | https://github.com/microsoft/TypeScript/pull/63066/commits/b8600f0f07f134103ff36049a223a16eca5f1366 |
|
| https://github.com/jakebailey |
| Restore module: commonjs | https://github.com/microsoft/TypeScript/pull/63066/commits/141bbacd567974ee7d10dfa90cb3a3e99c8bd88e |
| 141bbac | https://github.com/microsoft/TypeScript/pull/63066/commits/141bbacd567974ee7d10dfa90cb3a3e99c8bd88e |
|
| https://github.com/apps/copilot-pull-request-reviewer |
| Copilot | https://github.com/apps/copilot-pull-request-reviewer |
| January 29, 2026 20:45 | https://github.com/microsoft/TypeScript/pull/63066#event-22387827498 |
| https://github.com/apps/github-project-automation |
| github-project-automation | https://github.com/apps/github-project-automation |
| PR Backlog | https://github.com/orgs/microsoft/projects/1252 |
| Jan 29, 2026 | https://github.com/microsoft/TypeScript/pull/63066#event-22387834104 |
| https://github.com/typescript-bot |
| typescript-bot | https://github.com/typescript-bot |
| jakebailey | https://github.com/jakebailey |
| Jan 29, 2026 | https://github.com/microsoft/TypeScript/pull/63066#event-22387828685 |
| https://github.com/apps/github-project-automation |
| github-project-automation | https://github.com/apps/github-project-automation |
| PR Backlog | https://github.com/orgs/microsoft/projects/1252 |
| Jan 29, 2026 | https://github.com/microsoft/TypeScript/pull/63066#event-22387829531 |
| https://github.com/typescript-bot |
| typescript-bot | https://github.com/typescript-bot |
|
Author: Team
| https://github.com/microsoft/TypeScript/issues?q=state%3Aopen%20label%3A%22Author%3A%20Team%22 |
|
For Uncommitted Bug
| https://github.com/microsoft/TypeScript/issues?q=state%3Aopen%20label%3A%22For%20Uncommitted%20Bug%22 |
| Jan 29, 2026 | https://github.com/microsoft/TypeScript/pull/63066#event-22387829306 |
|
| https://github.com/apps/copilot-pull-request-reviewer |
| Copilot | https://github.com/apps/copilot-pull-request-reviewer |
|
Jan 29, 2026
| https://github.com/microsoft/TypeScript/pull/63066#pullrequestreview-3724984004 |
|
View reviewed changes
| https://github.com/microsoft/TypeScript/pull/63066/files/141bbacd567974ee7d10dfa90cb3a3e99c8bd88e |
| Copilot | https://github.com/apps/copilot-pull-request-reviewer |
| https://github.com/microsoft/TypeScript/pull/63066#pullrequestreview-3724984004 |
| Learn more | https://docs.github.com/articles/managing-disruptive-comments/#hiding-a-comment |
| Please reload this page | https://github.com/microsoft/TypeScript/pull/63066 |
| tests/baselines/reference/APISample_watcher.js | https://github.com/microsoft/TypeScript/pull/63066/files/141bbacd567974ee7d10dfa90cb3a3e99c8bd88e#diff-155a2e3c0a2bf4d196fecc9f2cfa1474ef08423fcde213f9f41a3846aec0febb |
| Please reload this page | https://github.com/microsoft/TypeScript/pull/63066 |
| tests/baselines/reference/APISample_parseConfig.js | https://github.com/microsoft/TypeScript/pull/63066/files/141bbacd567974ee7d10dfa90cb3a3e99c8bd88e#diff-b3c197c6b9f9f8c6ef237386d193c962db2bc6eb6814398279873fd596cc800d |
| Please reload this page | https://github.com/microsoft/TypeScript/pull/63066 |
| tests/baselines/reference/APISample_watcher.js | https://github.com/microsoft/TypeScript/pull/63066/files/141bbacd567974ee7d10dfa90cb3a3e99c8bd88e#diff-155a2e3c0a2bf4d196fecc9f2cfa1474ef08423fcde213f9f41a3846aec0febb |
| Please reload this page | https://github.com/microsoft/TypeScript/pull/63066 |
| https://github.com/jakebailey |
| jakebailey | https://github.com/jakebailey |
| Jan 29, 2026 | https://github.com/microsoft/TypeScript/pull/63066#event-22388351995 |
| jakebailey | https://github.com/jakebailey |
| January 29, 2026 13:18 | https://github.com/microsoft/TypeScript/pull/63066#commits-pushed-4fa90c5 |
|
| https://github.com/jakebailey |
| Do a pair of server tests early too | https://github.com/microsoft/TypeScript/pull/63066/commits/4fa90c551030b82297ff4c286f0c2c77fff38dd6 |
| 4fa90c5 | https://github.com/microsoft/TypeScript/pull/63066/commits/4fa90c551030b82297ff4c286f0c2c77fff38dd6 |
|
| https://github.com/jakebailey |
| Missed more ES5 tests based on their filenames | https://github.com/microsoft/TypeScript/pull/63066/commits/08006c9a6083b712df3e3bb2eb48174159e652c5 |
| 08006c9 | https://github.com/microsoft/TypeScript/pull/63066/commits/08006c9a6083b712df3e3bb2eb48174159e652c5 |
| https://github.com/gabritto |
| gabritto | https://github.com/gabritto |
|
Jan 29, 2026
| https://github.com/microsoft/TypeScript/pull/63066#pullrequestreview-3725335229 |
|
View reviewed changes
| https://github.com/microsoft/TypeScript/pull/63066/files/08006c9a6083b712df3e3bb2eb48174159e652c5 |
| https://github.com/apps/github-project-automation |
| github-project-automation | https://github.com/apps/github-project-automation |
| PR Backlog | https://github.com/orgs/microsoft/projects/1252 |
| Jan 29, 2026 | https://github.com/microsoft/TypeScript/pull/63066#event-22389868511 |
| https://github.com/jakebailey |
| jakebailey | https://github.com/jakebailey |
| merge queue | https://github.com/microsoft/TypeScript/queue/main |
| Jan 29, 2026 | https://github.com/microsoft/TypeScript/pull/63066#event-22390167932 |
| 3fc1f26 | https://github.com/microsoft/TypeScript/commit/3fc1f264de2aacae0c008eb4295e66833ade36d9 |
| Jan 29, 2026 | https://github.com/microsoft/TypeScript/pull/63066#event-22390359465 |
| Please reload this page | https://github.com/microsoft/TypeScript/pull/63066 |
| https://github.com/jakebailey |
| jakebailey | https://github.com/jakebailey |
| January 29, 2026 22:49 | https://github.com/microsoft/TypeScript/pull/63066#event-22390359857 |
| https://github.com/apps/github-project-automation |
| github-project-automation | https://github.com/apps/github-project-automation |
| PR Backlog | https://github.com/orgs/microsoft/projects/1252 |
| Jan 29, 2026 | https://github.com/microsoft/TypeScript/pull/63066#event-22390360391 |
|
Default target to "latest standard", deprecate ES5
#63067
| https://github.com/microsoft/TypeScript/pull/63067 |
|
Be more lenient about iteration when lib=es5 / noLib
#63070
| https://github.com/microsoft/TypeScript/pull/63070 |
| https://github.co/hiddenchars |
| https://github.com/microsoft/TypeScript/pull/{{ revealButtonHref }} |
| Sign up for free | https://github.com/join?source=comment-repo |
| Sign in to comment | https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fmicrosoft%2FTypeScript%2Fpull%2F63066 |
|
Copilot code review
| https://github.com/apps/copilot-pull-request-reviewer |
|
Copilot
| https://github.com/apps/copilot-pull-request-reviewer |
|
| https://github.com/microsoft/TypeScript/pull/63066/files/141bbacd567974ee7d10dfa90cb3a3e99c8bd88e |
|
| https://github.com/gabritto |
|
gabritto
| https://github.com/gabritto |
|
| https://github.com/microsoft/TypeScript/pull/63066/files/08006c9a6083b712df3e3bb2eb48174159e652c5 |
|
| https://github.com/jakebailey |
|
jakebailey
| https://github.com/jakebailey |
|
Author: Team
| https://github.com/microsoft/TypeScript/issues?q=state%3Aopen%20label%3A%22Author%3A%20Team%22 |
|
For Uncommitted Bug
| https://github.com/microsoft/TypeScript/issues?q=state%3Aopen%20label%3A%22For%20Uncommitted%20Bug%22 |
|
PR Backlog
| https://github.com/orgs/microsoft/projects/1252 |
| Please reload this page | https://github.com/microsoft/TypeScript/pull/63066 |
|
| https://github.com/jakebailey |
|
| https://github.com/gabritto |
|
| https://github.com/apps/copilot-pull-request-reviewer |
|
| https://github.com/andrewbranch |
|
| https://github.com/typescript-bot |
|
| https://github.com |
| Terms | https://docs.github.com/site-policy/github-terms/github-terms-of-service |
| Privacy | https://docs.github.com/site-policy/privacy-policies/github-privacy-statement |
| Security | https://github.com/security |
| Status | https://www.githubstatus.com/ |
| Community | https://github.community/ |
| Docs | https://docs.github.com/ |
| Contact | https://support.github.com?tags=dotcom-footer |