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This flag does nothing if your target is ES2015+
TS 7.0 shouldn't have this flag because we won't support target below ES2015. Deprecate it now, though it is a shame we never had... |
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| DanielRosenwasser | https://github.com/DanielRosenwasser |
| Jan 31, 2026 | https://github.com/microsoft/TypeScript/pull/63071#issuecomment-3826585042 |
| Zod here | https://github.com/colinhacks/zod/blob/54902cb794f24f4ceb0cf8830e5a27b3490191f7/packages/tsc/tsconfig.json |
| Please reload this page | https://github.com/microsoft/TypeScript/pull/63071 |
| https://github.com/jakebailey |
| jakebailey | https://github.com/jakebailey |
| Jan 31, 2026 | https://github.com/microsoft/TypeScript/pull/63071#issuecomment-3826592442 |
| Please reload this page | https://github.com/microsoft/TypeScript/pull/63071 |
| https://github.com/jakebailey |
| jakebailey | https://github.com/jakebailey |
| force-pushed | https://github.com/microsoft/TypeScript/compare/1e31acc9eef12abedec74de7a28d007186e2b23d..af91582494a65bf9f6fb49f7a0037d5eaae3e4f6 |
| 1e31acc | https://github.com/microsoft/TypeScript/commit/1e31acc9eef12abedec74de7a28d007186e2b23d |
| af91582 | https://github.com/microsoft/TypeScript/commit/af91582494a65bf9f6fb49f7a0037d5eaae3e4f6 |
|
Compare
| https://github.com/microsoft/TypeScript/compare/1e31acc9eef12abedec74de7a28d007186e2b23d..af91582494a65bf9f6fb49f7a0037d5eaae3e4f6 |
| January 31, 2026 05:31 | https://github.com/microsoft/TypeScript/pull/63071#event-22424641838 |
| https://github.com/jakebailey |
| jakebailey | https://github.com/jakebailey |
| Feb 3, 2026 | https://github.com/microsoft/TypeScript/pull/63071#issuecomment-3843176589 |
| @typescript-bot | https://github.com/typescript-bot |
| Please reload this page | https://github.com/microsoft/TypeScript/pull/63071 |
| https://github.com/typescript-bot |
| typescript-bot | https://github.com/typescript-bot |
| Feb 3, 2026 | https://github.com/microsoft/TypeScript/pull/63071#issuecomment-3843176860 |
| Please reload this page | https://github.com/microsoft/TypeScript/pull/63071 |
| ✅ Started | https://typescript.visualstudio.com/cf7ac146-d525-443c-b23c-0d58337efebc/_build/results?buildId=167063 |
| 👀 Results | https://github.com/microsoft/TypeScript/pull/63071#issuecomment-3843827126 |
| Please reload this page | https://github.com/microsoft/TypeScript/pull/63071 |
| https://github.com/jakebailey |
| jakebailey | https://github.com/jakebailey |
|
Breaking Change
| https://github.com/microsoft/TypeScript/issues?q=state%3Aopen%20label%3A%22Breaking%20Change%22 |
| Feb 3, 2026 | https://github.com/microsoft/TypeScript/pull/63071#event-22507688129 |
| https://github.com/typescript-bot |
| typescript-bot | https://github.com/typescript-bot |
| Feb 3, 2026 | https://github.com/microsoft/TypeScript/pull/63071#issuecomment-3843827126 |
| @jakebailey | https://github.com/jakebailey |
| 47ng/nuqs | https://github.com/47ng/nuqs |
| packages/scripts/tsconfig.json | https://github.com/47ng/nuqs/blob/f9f02e661237f9f56415f5be67f54afe8ad8bcb5/packages/scripts/tsconfig.json |
| packages/scripts/tsconfig.json#L22 | https://github.com/47ng/nuqs/blob/f9f02e661237f9f56415f5be67f54afe8ad8bcb5/packages/scripts/tsconfig.json#L22 |
| packages/nuqs/tsconfig.build.json | https://github.com/47ng/nuqs/blob/f9f02e661237f9f56415f5be67f54afe8ad8bcb5/packages/nuqs/tsconfig.build.json |
| actualbudget/actual | https://github.com/actualbudget/actual |
| tsconfig.json | https://github.com/actualbudget/actual/blob/0d6742664b7a5f111013bc6392bf3fda5e2c8a7c/tsconfig.json |
| tsconfig.json#L15 | https://github.com/actualbudget/actual/blob/0d6742664b7a5f111013bc6392bf3fda5e2c8a7c/tsconfig.json#L15 |
| packages/sync-server/tsconfig.json | https://github.com/actualbudget/actual/blob/0d6742664b7a5f111013bc6392bf3fda5e2c8a7c/packages/sync-server/tsconfig.json |
| packages/sync-server/tsconfig.json#L3 | https://github.com/actualbudget/actual/blob/0d6742664b7a5f111013bc6392bf3fda5e2c8a7c/packages/sync-server/tsconfig.json#L3 |
| packages/loot-core/tsconfig.api.json | https://github.com/actualbudget/actual/blob/0d6742664b7a5f111013bc6392bf3fda5e2c8a7c/packages/loot-core/tsconfig.api.json |
| packages/loot-core/tsconfig.api.json#L3 | https://github.com/actualbudget/actual/blob/0d6742664b7a5f111013bc6392bf3fda5e2c8a7c/packages/loot-core/tsconfig.api.json#L3 |
| better-auth/better-auth | https://github.com/better-auth/better-auth |
| packages/scim/tsconfig.json | https://github.com/better-auth/better-auth/blob/3308ecef659df7d3a24913d0c4e5e2997b7b850b/packages/scim/tsconfig.json |
| packages/telemetry/tsconfig.json | https://github.com/better-auth/better-auth/blob/3308ecef659df7d3a24913d0c4e5e2997b7b850b/packages/telemetry/tsconfig.json |
| packages/drizzle-adapter/tsconfig.json | https://github.com/better-auth/better-auth/blob/3308ecef659df7d3a24913d0c4e5e2997b7b850b/packages/drizzle-adapter/tsconfig.json |
| packages/kysely-adapter/tsconfig.json | https://github.com/better-auth/better-auth/blob/3308ecef659df7d3a24913d0c4e5e2997b7b850b/packages/kysely-adapter/tsconfig.json |
| packages/memory-adapter/tsconfig.json | https://github.com/better-auth/better-auth/blob/3308ecef659df7d3a24913d0c4e5e2997b7b850b/packages/memory-adapter/tsconfig.json |
| packages/mongo-adapter/tsconfig.json | https://github.com/better-auth/better-auth/blob/3308ecef659df7d3a24913d0c4e5e2997b7b850b/packages/mongo-adapter/tsconfig.json |
| packages/prisma-adapter/tsconfig.json | https://github.com/better-auth/better-auth/blob/3308ecef659df7d3a24913d0c4e5e2997b7b850b/packages/prisma-adapter/tsconfig.json |
| packages/scim/tsconfig.json | https://github.com/better-auth/better-auth/blob/3308ecef659df7d3a24913d0c4e5e2997b7b850b/packages/scim/tsconfig.json |
| packages/core/tsconfig.json#L3 | https://github.com/better-auth/better-auth/blob/3308ecef659df7d3a24913d0c4e5e2997b7b850b/packages/core/tsconfig.json#L3 |
| packages/core/tsconfig.json | https://github.com/better-auth/better-auth/blob/3308ecef659df7d3a24913d0c4e5e2997b7b850b/packages/core/tsconfig.json |
| packages/better-auth/tsconfig.json#L3 | https://github.com/better-auth/better-auth/blob/3308ecef659df7d3a24913d0c4e5e2997b7b850b/packages/better-auth/tsconfig.json#L3 |
| packages/better-auth/tsconfig.json | https://github.com/better-auth/better-auth/blob/3308ecef659df7d3a24913d0c4e5e2997b7b850b/packages/better-auth/tsconfig.json |
| colinhacks/zod | https://github.com/colinhacks/zod |
| packages/tsc/tsconfig.json | https://github.com/colinhacks/zod/blob/54902cb794f24f4ceb0cf8830e5a27b3490191f7/packages/tsc/tsconfig.json |
| packages/tsc/tsconfig.json#L4 | https://github.com/colinhacks/zod/blob/54902cb794f24f4ceb0cf8830e5a27b3490191f7/packages/tsc/tsconfig.json#L4 |
| packages/integration/fixtures/drizzle-zod/tsconfig.json | https://github.com/colinhacks/zod/blob/54902cb794f24f4ceb0cf8830e5a27b3490191f7/packages/integration/fixtures/drizzle-zod/tsconfig.json |
| packages/integration/fixtures/drizzle-zod/tsconfig.json#L3 | https://github.com/colinhacks/zod/blob/54902cb794f24f4ceb0cf8830e5a27b3490191f7/packages/integration/fixtures/drizzle-zod/tsconfig.json#L3 |
| packages/integration/fixtures/ai-sdk/tsconfig.json | https://github.com/colinhacks/zod/blob/54902cb794f24f4ceb0cf8830e5a27b3490191f7/packages/integration/fixtures/ai-sdk/tsconfig.json |
| packages/integration/fixtures/ai-sdk/tsconfig.json#L3 | https://github.com/colinhacks/zod/blob/54902cb794f24f4ceb0cf8830e5a27b3490191f7/packages/integration/fixtures/ai-sdk/tsconfig.json#L3 |
| packages/bench/tsconfig.json | https://github.com/colinhacks/zod/blob/54902cb794f24f4ceb0cf8830e5a27b3490191f7/packages/bench/tsconfig.json |
| packages/bench/tsconfig.json#L3 | https://github.com/colinhacks/zod/blob/54902cb794f24f4ceb0cf8830e5a27b3490191f7/packages/bench/tsconfig.json#L3 |
| compiler-explorer/compiler-explorer | https://github.com/compiler-explorer/compiler-explorer |
| tsconfig.tests.json | https://github.com/compiler-explorer/compiler-explorer/blob/ec1ac4703384013b310ff1bbafaccd449cef59fc/tsconfig.tests.json |
| tsconfig.json | https://github.com/compiler-explorer/compiler-explorer/blob/ec1ac4703384013b310ff1bbafaccd449cef59fc/tsconfig.json |
| getsentry/sentry-javascript | https://github.com/getsentry/sentry-javascript |
| packages/tanstackstart/tsconfig.json | https://github.com/getsentry/sentry-javascript/blob/3fa7a86158600ff0423d13cf24c1adbb1347c3ec/packages/tanstackstart/tsconfig.json |
| packages/tanstackstart/tsconfig.json#L4 | https://github.com/getsentry/sentry-javascript/blob/3fa7a86158600ff0423d13cf24c1adbb1347c3ec/packages/tanstackstart/tsconfig.json#L4 |
| packages/react-router/tsconfig.vite.json | https://github.com/getsentry/sentry-javascript/blob/3fa7a86158600ff0423d13cf24c1adbb1347c3ec/packages/react-router/tsconfig.vite.json |
| packages/react-router/tsconfig.vite.json#L6 | https://github.com/getsentry/sentry-javascript/blob/3fa7a86158600ff0423d13cf24c1adbb1347c3ec/packages/react-router/tsconfig.vite.json#L6 |
| tldraw/tldraw | https://github.com/tldraw/tldraw |
| apps/dotcom/zero-cache/tsconfig.json | https://github.com/tldraw/tldraw/blob/9b55464faea93bc67a374eedb04b3c1c535224df/apps/dotcom/zero-cache/tsconfig.json |
| apps/dotcom/zero-cache/tsconfig.json#L18 | https://github.com/tldraw/tldraw/blob/9b55464faea93bc67a374eedb04b3c1c535224df/apps/dotcom/zero-cache/tsconfig.json#L18 |
| upstash/context7 | https://github.com/upstash/context7 |
| packages/sdk/tsconfig.json | https://github.com/upstash/context7/blob/61e7fcdc7680a7cc7d2b68ab9d4c93efc9cb60d5/packages/sdk/tsconfig.json |
| packages/sdk/tsconfig.json#L11 | https://github.com/upstash/context7/blob/61e7fcdc7680a7cc7d2b68ab9d4c93efc9cb60d5/packages/sdk/tsconfig.json#L11 |
| vercel/swr | https://github.com/vercel/swr |
| tsconfig.json | https://github.com/vercel/swr/blob/9a029984bc5f3148c989e12ad9852c1b43226c5f/tsconfig.json |
| tsconfig.json#L19 | https://github.com/vercel/swr/blob/9a029984bc5f3148c989e12ad9852c1b43226c5f/tsconfig.json#L19 |
| e2e/test/tsconfig.json | https://github.com/vercel/swr/blob/9a029984bc5f3148c989e12ad9852c1b43226c5f/e2e/test/tsconfig.json |
| Please reload this page | https://github.com/microsoft/TypeScript/pull/63071 |
| https://github.com/DanielRosenwasser |
| DanielRosenwasser | https://github.com/DanielRosenwasser |
|
Feb 3, 2026
| https://github.com/microsoft/TypeScript/pull/63071#ref-issue-3893455068 |
|
TypeScript 6.0 Iteration Plan
#63085
| https://github.com/microsoft/TypeScript/issues/63085 |
| https://github.com/jakebailey |
| jakebailey | https://github.com/jakebailey |
|
Feb 3, 2026
| https://github.com/microsoft/TypeScript/pull/63071#pullrequestreview-3748187270 |
|
View reviewed changes
| https://github.com/microsoft/TypeScript/pull/63071/files |
| tests/baselines/reference/arrayLiteralSpreadES5iterable(target=es2015).errors.txt | https://github.com/microsoft/TypeScript/pull/63071/files#diff-8418fc311d0e4db41806646d2f6894222430340014becd6c297d99831b7e6c46 |
| Please reload this page | https://github.com/microsoft/TypeScript/pull/63071 |
| ...s/baselines/reference/destructuringVariableDeclaration1ES5iterable(target=es2015).errors.txt | https://github.com/microsoft/TypeScript/pull/63071/files#diff-7613e6f26f57bcb799e2044766b91f375226d94ec385866b019898cdd033e064 |
| Please reload this page | https://github.com/microsoft/TypeScript/pull/63071 |
| tests/baselines/reference/sourceMapValidationVarInDownLevelGenerator(target=es2015).errors.txt | https://github.com/microsoft/TypeScript/pull/63071/files#diff-55a995e53338a23522812445650023d30a45d8a70333f66fb5e61c84b4877534 |
| Please reload this page | https://github.com/microsoft/TypeScript/pull/63071 |
| https://github.com/jakebailey |
| jakebailey | https://github.com/jakebailey |
|
Feb 3, 2026
| https://github.com/microsoft/TypeScript/pull/63071#ref-pullrequest-3893761062 |
|
Fix some tests that should have stayed ES5
#63086
| https://github.com/microsoft/TypeScript/pull/63086 |
| https://github.com/jakebailey |
| jakebailey | https://github.com/jakebailey |
|
Feb 3, 2026
| https://github.com/microsoft/TypeScript/pull/63071#pullrequestreview-3748213500 |
|
View reviewed changes
| https://github.com/microsoft/TypeScript/pull/63071/files |
| tests/baselines/reference/arrayLiteralSpreadES5iterable(target=es2015).errors.txt | https://github.com/microsoft/TypeScript/pull/63071/files#diff-8418fc311d0e4db41806646d2f6894222430340014becd6c297d99831b7e6c46 |
| Please reload this page | https://github.com/microsoft/TypeScript/pull/63071 |
|
| https://github.com/jakebailey |
| Deprecate downlevelIteration | https://github.com/microsoft/TypeScript/pull/63071/commits/ffafc51f46ef9c8ac9a5cb7d8db8878e3c768051 |
| ffafc51 | https://github.com/microsoft/TypeScript/pull/63071/commits/ffafc51f46ef9c8ac9a5cb7d8db8878e3c768051 |
| https://github.com/jakebailey |
| jakebailey | https://github.com/jakebailey |
| force-pushed | https://github.com/microsoft/TypeScript/compare/6c8f5dc6c334916604538c87a73242c555fa9634..ffafc51f46ef9c8ac9a5cb7d8db8878e3c768051 |
| 6c8f5dc | https://github.com/microsoft/TypeScript/commit/6c8f5dc6c334916604538c87a73242c555fa9634 |
| ffafc51 | https://github.com/microsoft/TypeScript/commit/ffafc51f46ef9c8ac9a5cb7d8db8878e3c768051 |
|
Compare
| https://github.com/microsoft/TypeScript/compare/6c8f5dc6c334916604538c87a73242c555fa9634..ffafc51f46ef9c8ac9a5cb7d8db8878e3c768051 |
| February 4, 2026 20:09 | https://github.com/microsoft/TypeScript/pull/63071#event-22539252103 |
| https://github.com/RyanCavanaugh |
| RyanCavanaugh | https://github.com/RyanCavanaugh |
|
Feb 4, 2026
| https://github.com/microsoft/TypeScript/pull/63071#pullrequestreview-3753125595 |
|
View reviewed changes
| https://github.com/microsoft/TypeScript/pull/63071/files/ffafc51f46ef9c8ac9a5cb7d8db8878e3c768051 |
| 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 |
| Feb 4, 2026 | https://github.com/microsoft/TypeScript/pull/63071#event-22539335668 |
| https://github.com/jakebailey |
| jakebailey | https://github.com/jakebailey |
| February 4, 2026 20:14 | https://github.com/microsoft/TypeScript/pull/63071#event-22539362110 |
| https://github.com/jakebailey |
| jakebailey | https://github.com/jakebailey |
| February 4, 2026 22:52 | https://github.com/microsoft/TypeScript/pull/63071#event-22542549828 |
| https://github.com/jakebailey |
| jakebailey | https://github.com/jakebailey |
| merge queue | https://github.com/microsoft/TypeScript/queue/main |
| Feb 4, 2026 | https://github.com/microsoft/TypeScript/pull/63071#event-22542657126 |
| 74885dd | https://github.com/microsoft/TypeScript/commit/74885dde4c83a6346f9ceaf8c570b74444f2c9c8 |
| Feb 4, 2026 | https://github.com/microsoft/TypeScript/pull/63071#event-22542813925 |
| Please reload this page | https://github.com/microsoft/TypeScript/pull/63071 |
| https://github.com/jakebailey |
| jakebailey | https://github.com/jakebailey |
| February 4, 2026 23:09 | https://github.com/microsoft/TypeScript/pull/63071#event-22542815475 |
| 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 |
| Feb 4, 2026 | https://github.com/microsoft/TypeScript/pull/63071#event-22542816185 |
| https://github.com/DanielRosenwasser |
| DanielRosenwasser | https://github.com/DanielRosenwasser |
| TypeScript 6.0.0 | https://github.com/microsoft/TypeScript/milestone/218 |
| Feb 10, 2026 | https://github.com/microsoft/TypeScript/pull/63071#event-22659702363 |
|
| https://github.com/apps/copilot-swe-agent |
| Copilot | https://github.com/apps/copilot-swe-agent |
|
Feb 18, 2026
| https://github.com/microsoft/TypeScript/pull/63071#ref-pullrequest-3955733127 |
|
Port TypeScript#63071: Mark downlevelIteration as removed
microsoft/typescript-go#2820
| https://github.com/microsoft/typescript-go/pull/2820 |
| https://github.com/NatoBoram |
| NatoBoram | https://github.com/NatoBoram |
|
Feb 26, 2026
| https://github.com/microsoft/TypeScript/pull/63071#ref-pullrequest-3992562649 |
|
♻️ Modernize client
NatoBoram/gigachads.ts#76
| https://github.com/NatoBoram/gigachads.ts/pull/76 |
| https://github.com/ly-schneider |
| ly-schneider | https://github.com/ly-schneider |
|
Apr 15, 2026
| https://github.com/microsoft/TypeScript/pull/63071#ref-pullrequest-4270531344 |
|
chore(deps-dev): bump typescript from 5.9.3 to 6.0.2 in /bfs-docs
ly-schneider/bless2n-food-system#316
| https://github.com/ly-schneider/bless2n-food-system/pull/316 |
| https://github.com/apps/claude |
| claude | https://github.com/apps/claude |
|
Apr 24, 2026
| https://github.com/microsoft/TypeScript/pull/63071#ref-pullrequest-4321656786 |
|
chore(deps): update dependency typescript to v6
daangn/seed-design#1527
| https://github.com/daangn/seed-design/pull/1527 |
| https://github.com/apps/coderabbitai |
| coderabbitai | https://github.com/apps/coderabbitai |
|
May 30, 2026
| https://github.com/microsoft/TypeScript/pull/63071#ref-pullrequest-4555528640 |
|
Initial project scaffold: Next.js app, Prisma schema, auth, admin APIs, UI and configs
cosms65/logo-#2
| https://github.com/cosms65/logo-/pull/2 |
| https://github.com/Dhruv2mars |
| Dhruv2mars | https://github.com/Dhruv2mars |
|
Jul 10, 2026
| https://github.com/microsoft/TypeScript/pull/63071#ref-issue-4857956512 |
|
TypeScript 6.0 Iteration Plan
Dhruv2mars/typescript-relunar-testbed#4894
| https://github.com/Dhruv2mars/typescript-relunar-testbed/issues/4894 |
| https://github.co/hiddenchars |
| https://github.com/microsoft/TypeScript/pull/{{ revealButtonHref }} |
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|
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/63071/files/1e31acc9eef12abedec74de7a28d007186e2b23d |
|
| https://github.com/RyanCavanaugh |
|
RyanCavanaugh
| https://github.com/RyanCavanaugh |
|
| https://github.com/microsoft/TypeScript/pull/63071/files/ffafc51f46ef9c8ac9a5cb7d8db8878e3c768051 |
|
| https://github.com/DanielRosenwasser |
|
DanielRosenwasser
| https://github.com/DanielRosenwasser |
|
| 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 |
|
Breaking Change
| https://github.com/microsoft/TypeScript/issues?q=state%3Aopen%20label%3A%22Breaking%20Change%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 |
|
TypeScript 6.0.0
| https://github.com/microsoft/TypeScript/milestone/218 |
| Please reload this page | https://github.com/microsoft/TypeScript/pull/63071 |
|
| https://github.com/jakebailey |
|
| https://github.com/typescript-bot |
|
| https://github.com/DanielRosenwasser |
|
| https://github.com/RyanCavanaugh |
|
| https://github.com/apps/copilot-pull-request-reviewer |
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