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feat: update to TypeScript 4.9 #5716

merged 9 commits into from
Nov 17, 2022


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@sosukesuzuki sosukesuzuki commented Oct 2, 2022

We need to wait that RC version is released

PR Checklist


  • Install typescript@4.9.1-beta
  • Update the patch file for 4.9.1-beta
  • Run generate:lib

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package.json Outdated
"typescript": "~4.8.3",
"@types/node": "^17.0.31",
"typescript": "~4.9.1-beta",
"@types/node": "^18.7.23",

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codecov bot commented Oct 2, 2022

Codecov Report

Merging #5716 (35809e3) into main (f11183c) will increase coverage by 0.00%.
The diff coverage is 100.00%.

Additional details and impacted files
@@           Coverage Diff           @@
##             main    #5716   +/-   ##
  Coverage   91.29%   91.30%           
  Files         365      366    +1     
  Lines       12251    12255    +4     
  Branches     3577     3577           
+ Hits        11185    11189    +4     
  Misses        758      758           
  Partials      308      308           
Flag Coverage Δ
unittest 91.30% <100.00%> (+<0.01%) ⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files Coverage Δ
packages/scope-manager/src/lib/dom.ts 100.00% <ø> (ø)
packages/scope-manager/src/lib/webworker.ts 100.00% <ø> (ø)
packages/scope-manager/src/lib/es2019.intl.ts 100.00% <100.00%> (ø)
packages/scope-manager/src/lib/es2019.ts 100.00% <100.00%> (ø)
packages/scope-manager/src/lib/index.ts 100.00% <100.00%> (ø)
...ackages/scope-manager/src/referencer/Referencer.ts 95.96% <100.00%> (ø)
...ipt-estree/src/parseSettings/warnAboutTSVersion.ts 93.33% <100.00%> (ø)

@sosukesuzuki sosukesuzuki changed the title feat: Update to TypeScript 4.9 feat: update to TypeScript 4.9 Oct 2, 2022
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We need to wait that RC version is released

It has landed 🎉

@sosukesuzuki sosukesuzuki marked this pull request as ready for review November 2, 2022 17:26
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Contributor Author

@bradzacher @JoshuaKGoldberg This PR is ready for review!

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This looks great to me, thanks!

I'm not 100% familiar with how these are generated so I'll defer to @bradzacher

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Given the final version of 4.9 is to release today, should we expect this to be merged and released anytime soon?

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It would be great if we can test this already in a canary version.

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It would be great if we can test this already in a canary version.

Not sure which would be a canary, but there the 4.9.1-beta and the 4.9.2-rc.

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Please follow along at the issue #5688 for status of support for TS4.9.
This PR is just about locally upgrading our package.


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@bradzacher bradzacher merged commit 4d744ea into typescript-eslint:main Nov 17, 2022
omril1 pushed a commit to omril1/typescript-eslint that referenced this pull request Nov 23, 2022
* feat: update typescript to 4.9.1

* fix: add patch file for 4.9.1-beta

* feat(typescript-estree): update version range

* feat: run `generate-lib` script

* chore: update patch for typescript

* fix: run `lint-fix`

* feat: update to typescript 4.9.2-rc

* chore: run patch-package

* chore: update `@types/node`
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7 participants