TypeScript DOM update 2025-12-10

Pulling in the latest since a bunch changed.

Nov 07 '25 05:11 jakebailey

@typescript-bot user test this @typescript-bot run dt @typescript-bot test top800

Nov 07 '25 05:11 jakebailey

Starting jobs; this comment will be updated as builds start and complete.

Command	Status	Results
`user test this`	✅ Started	✅ Results
`run dt`	✅ Started	👀 Results
`test top800`	✅ Started	👀 Results

Nov 07 '25 05:11 typescript-bot

Hey @jakebailey, the results of running the DT tests are ready.

There were interesting changes:

Branch only errors:

Package: serviceworker-webpack-plugin Error:

Error: 
/mnt/vss/_work/1/DefinitelyTyped/types/serviceworker-webpack-plugin/serviceworker-webpack-plugin-tests.ts
  49:22  error  TypeScript@local compile error: 
Property 'pushManager' does not exist on type 'ServiceWorkerRegistration'  @definitelytyped/expect
  53:22  error  TypeScript@local compile error: 
Property 'pushManager' does not exist on type 'ServiceWorkerRegistration'  @definitelytyped/expect

✖ 2 problems (2 errors, 0 warnings)

    at combineErrorsAndWarnings (/mnt/vss/_work/1/DefinitelyTyped/node_modules/.pnpm/@[email protected][email protected]/node_modules/@definitelytyped/dtslint/dist/index.js:199:28)
    at runTests (/mnt/vss/_work/1/DefinitelyTyped/node_modules/.pnpm/@[email protected][email protected]/node_modules/@definitelytyped/dtslint/dist/index.js:191:20)

You can check the log here.

Nov 07 '25 06:11 typescript-bot

@jakebailey Here are the results of running the user tests with tsc comparing main and refs/pull/62730/merge:

There were infrastructure failures potentially unrelated to your change:

1 instance of "Git clone failed"

Otherwise...

Everything looks good!

Nov 07 '25 06:11 typescript-bot

@jakebailey Here are the results of running the top 800 repos with tsc comparing main and refs/pull/62730/merge:

Something interesting changed - please have a look.

Details

microsoft/azuredatastudio

44 of 67 projects failed to build with the old tsc and were ignored

extensions/vscode-test-resolver/tsconfig.json

error TS2345: Argument of type 'Uint8Array<ArrayBufferLike>' is not assignable to parameter of type 'string | BufferSource | Blob'.
- extensions/vscode-test-resolver/src/extension.browser.ts#L101
- extensions/vscode-test-resolver/src/extension.browser.ts#L127

microsoft/vscode

13 of 63 projects failed to build with the old tsc and were ignored

src/tsconfig.tsec.json

error TS2345: Argument of type 'ArrayBuffer | ArrayBufferView<ArrayBufferLike>' is not assignable to parameter of type 'string | Blob | BufferSource'.
- src/vs/platform/remote/browser/browserSocketFactory.ts#L191

src/tsconfig.monaco.json

error TS2345: Argument of type 'ArrayBuffer | ArrayBufferView<ArrayBufferLike>' is not assignable to parameter of type 'string | BufferSource | Blob'.
- src/vs/platform/remote/browser/browserSocketFactory.ts#L191

extensions/vscode-test-resolver/tsconfig.json

error TS2345: Argument of type 'Uint8Array<ArrayBufferLike>' is not assignable to parameter of type 'string | BufferSource | Blob'.
- extensions/vscode-test-resolver/src/extension.browser.ts#L101
- extensions/vscode-test-resolver/src/extension.browser.ts#L127

build/checker/tsconfig.electron-browser.json

error TS2345: Argument of type 'ArrayBuffer | ArrayBufferView<ArrayBufferLike>' is not assignable to parameter of type 'string | Blob | BufferSource'.
- src/vs/platform/remote/browser/browserSocketFactory.ts#L191

Nov 07 '25 08:11 typescript-bot

@Renegade334 Do these differences seem correct to you? I think these are a result of the change you just made.

Nov 11 '25 19:11 jakebailey

The top800 ones? Those do look correct – these are essentially the exact same ArrayBufferView<ArrayBufferLike>-to-ArrayBufferView<ArrayBuffer> assignability errors that were unearthed in 5.9 in the rest of the library, but an erroneous override on WebSocket#send() shielded the effects from this specific method.

Nov 11 '25 20:11 Renegade334

@typescript-bot test it

Dec 11 '25 01:12 jakebailey

Starting jobs; this comment will be updated as builds start and complete.

Command	Status	Results
`test top400`	✅ Started	👀 Results
`user test this`	✅ Started	✅ Results
`run dt`	✅ Started	👀 Results
`perf test this faster`	✅ Started	👀 Results

Dec 11 '25 01:12 typescript-bot

Hey @jakebailey, the results of running the DT tests are ready.

There were interesting changes:

Branch only errors:

Package: dom-navigation Error:

Error: 
/mnt/vss/_work/1/DefinitelyTyped/types/dom-navigation/dom-navigation-tests.ts
  49:12  error  TypeScript@local compile error: 
Property 'onnavigate' does not exist on type 'Navigation'. Did you mean 'navigate'?                                                                                                                                                                                                                                                                                                                                                          @definitelytyped/expect
  50:41  error  TypeScript@local compile error: 
Argument of type '(e: NavigateEvent) => void' is not assignable to parameter of type 'EventListenerOrEventListenerObject | null'.
  Type '(e: NavigateEvent) => void' is not assignable to type 'EventListener'.
    Types of parameters 'e' and 'evt' are incompatible.
      Type 'Event' is missing the following properties from type 'NavigateEvent': canIntercept, destination, downloadRequest, formData, and 9 more                  @definitelytyped/expect
  51:44  error  TypeScript@local compile error: 
Argument of type '(e: NavigateEvent) => void' is not assignable to parameter of type 'EventListenerOrEventListenerObject | null'.
  Type '(e: NavigateEvent) => void' is not assignable to type 'EventListener'.
    Types of parameters 'e' and 'evt' are incompatible.
      Type 'Event' is missing the following properties from type 'NavigateEvent': canIntercept, destination, downloadRequest, formData, and 9 more                  @definitelytyped/expect
  53:12  error  TypeScript@local compile error: 
Property 'onnavigatesuccess' does not exist on type 'Navigation'                                                                                                                                                                                                                                                                                                                                                                             @definitelytyped/expect
  57:12  error  TypeScript@local compile error: 
Property 'onnavigateerror' does not exist on type 'Navigation'                                                                                                                                                                                                                                                                                                                                                                               @definitelytyped/expect
  64:12  error  TypeScript@local compile error: 
Property 'oncurrententrychange' does not exist on type 'Navigation'                                                                                                                                                                                                                                                                                                                                                                          @definitelytyped/expect
  65:51  error  TypeScript@local compile error: 
Argument of type '(e: NavigationCurrentEntryChangeEvent) => void' is not assignable to parameter of type 'EventListenerOrEventListenerObject | null'.
  Type '(e: NavigationCurrentEntryChangeEvent) => void' is not assignable to type 'EventListener'.
    Types of parameters 'e' and 'evt' are incompatible.
      Type 'Event' is missing the following properties from type 'NavigationCurrentEntryChangeEvent': from, navigationType  @definitelytyped/expect
  66:54  error  TypeScript@local compile error: 
Argument of type '(e: NavigationCurrentEntryChangeEvent) => void' is not assignable to parameter of type 'EventListenerOrEventListenerObject | null'.
  Type '(e: NavigationCurrentEntryChangeEvent) => void' is not assignable to type 'EventListener'.
    Types of parameters 'e' and 'evt' are incompatible.
      Type 'Event' is missing the following properties from type 'NavigationCurrentEntryChangeEvent': from, navigationType  @definitelytyped/expect

/mnt/vss/_work/1/DefinitelyTyped/types/dom-navigation/index.d.ts
   13:5   error  TypeScript@local compile error: 
All declarations of 'committed' must have identical modifiers                                                                                                                                       @definitelytyped/expect
   13:5   error  TypeScript@local compile error: 
Subsequent property declarations must have the same type.  Property 'committed' must be of type 'Promise<NavigationHistoryEntry> | undefined', but here has type 'Promise<NavigationHistoryEntry>'  @definitelytyped/expect
   14:5   error  TypeScript@local compile error: 
All declarations of 'finished' must have identical modifiers                                                                                                                                        @definitelytyped/expect
   14:5   error  TypeScript@local compile error: 
Subsequent property declarations must have the same type.  Property 'finished' must be of type 'Promise<NavigationHistoryEntry> | undefined', but here has type 'Promise<NavigationHistoryEntry>'   @definitelytyped/expect
   17:15  error  TypeScript@local compile error: 
Duplicate identifier 'Navigation'                                                                                                                                                                   @definitelytyped/expect
   60:15  error  TypeScript@local compile error: 
Duplicate identifier 'NavigationTransition'                                                                                                                                                         @definitelytyped/expect
  111:5   error  TypeScript@local compile error: 
Subsequent property declarations must have the same type.  Property 'state' must be of type 'any', but here has type 'unknown'                                                                      @definitelytyped/expect
  115:5   error  TypeScript@local compile error: 
Subsequent property declarations must have the same type.  Property 'info' must be of type 'any', but here has type 'unknown'                                                                       @definitelytyped/expect
  119:5   error  TypeScript@local compile error: 
Subsequent property declarations must have the same type.  Property 'state' must be of type 'any', but here has type 'unknown'                                                                      @definitelytyped/expect
  124:5   error  TypeScript@local compile error: 
Subsequent property declarations must have the same type.  Property 'state' must be of type 'any', but here has type 'unknown'                                                                      @definitelytyped/expect
  127:15  error  TypeScript@local compile error: 
Duplicate identifier 'NavigationCurrentEntryChangeEvent'                                                                                                                                            @definitelytyped/expect
  139:15  error  TypeScript@local compile error: 
Duplicate identifier 'NavigateEvent'                                                                                                                                                                @definitelytyped/expect
  166:5   error  TypeScript@local compile error: 
Subsequent property declarations must have the same type.  Property 'info' must be of type 'any', but here has type 'unknown'                                                                       @definitelytyped/expect
  170:5   error  TypeScript@local compile error: 
Subsequent property declarations must have the same type.  Property 'handler' must be of type 'NavigationInterceptHandler | undefined', but here has type '(() => Promise<void>) | undefined'       @definitelytyped/expect
  175:15  error  TypeScript@local compile error: 
Duplicate identifier 'NavigationDestination'                                                                                                                                                        @definitelytyped/expect

✖ 23 problems (23 errors, 0 warnings)

    at combineErrorsAndWarnings (/mnt/vss/_work/1/DefinitelyTyped/node_modules/.pnpm/@[email protected][email protected]/node_modules/@definitelytyped/dtslint/dist/index.js:199:28)
    at runTests (/mnt/vss/_work/1/DefinitelyTyped/node_modules/.pnpm/@[email protected][email protected]/node_modules/@definitelytyped/dtslint/dist/index.js:191:20)

Package: serviceworker-webpack-plugin Error:

Error: 
/mnt/vss/_work/1/DefinitelyTyped/types/serviceworker-webpack-plugin/serviceworker-webpack-plugin-tests.ts
  49:22  error  TypeScript@local compile error: 
Property 'pushManager' does not exist on type 'ServiceWorkerRegistration'  @definitelytyped/expect
  53:22  error  TypeScript@local compile error: 
Property 'pushManager' does not exist on type 'ServiceWorkerRegistration'  @definitelytyped/expect

✖ 2 problems (2 errors, 0 warnings)

    at combineErrorsAndWarnings (/mnt/vss/_work/1/DefinitelyTyped/node_modules/.pnpm/@[email protected][email protected]/node_modules/@definitelytyped/dtslint/dist/index.js:199:28)
    at runTests (/mnt/vss/_work/1/DefinitelyTyped/node_modules/.pnpm/@[email protected][email protected]/node_modules/@definitelytyped/dtslint/dist/index.js:191:20)

You can check the log here.

Dec 11 '25 01:12 typescript-bot

@jakebailey Here are the results of running the user tests with tsc comparing main and refs/pull/62730/merge:

There were infrastructure failures potentially unrelated to your change:

1 instance of "Git clone failed"

Otherwise...

Everything looks good!

Dec 11 '25 01:12 typescript-bot

@jakebailey The results of the perf run you requested are in!

Here they are:

tsc

Comparison Report - baseline..pr

_Metric	_baseline	_pr	_Delta	_Best	_Worst	_p-value
_{Compiler-Unions - node (v18.15.0, x64)}
_Errors	₁	₁	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_62,370	_62,370	_~	_~	_~	_{p=1.000 n=6}
_Types	_50,387	_50,387	_~	_~	_~	_{p=1.000 n=6}
_{Memory used}	_{195,054k (± 0.95%)}	_{194,979k (± 0.93%)}	_~	_192,517k	_196,233k	_{p=0.378 n=6}
_{Parse Time}	_{1.30s (± 0.76%)}	_{1.30s (± 0.42%)}	_~	_1.30s	_1.31s	_{p=0.232 n=6}
_{Bind Time}	_0.76s	_{0.76s (± 0.54%)}	_~	_0.76s	_0.77s	_{p=0.405 n=6}
_{Check Time}	_{9.84s (± 0.46%)}	_{9.85s (± 0.23%)}	_~	_9.81s	_9.87s	_{p=0.292 n=6}
_{Emit Time}	_{2.74s (± 0.76%)}	_{2.73s (± 0.64%)}	_~	_2.72s	_2.76s	_{p=0.560 n=6}
_{Total Time}	_{14.63s (± 0.33%)}	_{14.65s (± 0.19%)}	_~	_14.61s	_14.69s	_{p=0.467 n=6}
_{angular-1 - node (v18.15.0, x64)}
_Errors	₂	₂	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_955,823	_956,181	_{+358 (+ 0.04%)}	_~	_~	_{p=0.001 n=6}
_Types	_415,853	_415,960	_{+107 (+ 0.03%)}	_~	_~	_{p=0.001 n=6}
_{Memory used}	_{1,253,891k (± 0.01%)}	_{1,254,976k (± 0.00%)}	_{+1,085k (+ 0.09%)}	_1,254,938k	_1,255,027k	_{p=0.005 n=6}
_{Parse Time}	_{6.54s (± 0.67%)}	_{6.57s (± 0.43%)}	_~	_6.52s	_6.60s	_{p=0.225 n=6}
_{Bind Time}	_{1.96s (± 0.32%)}	_{1.96s (± 0.21%)}	_~	_1.95s	_1.96s	_{p=0.673 n=6}
_{Check Time}	_{32.30s (± 0.56%)}	_{32.38s (± 0.12%)}	_~	_32.33s	_32.44s	_{p=0.748 n=6}
_{Emit Time}	_{14.94s (± 0.32%)}	_{15.01s (± 0.52%)}	_~	_14.91s	_15.08s	_{p=0.128 n=6}
_{Total Time}	_{55.74s (± 0.36%)}	_{55.91s (± 0.17%)}	_~	_55.78s	_56.07s	_{p=0.173 n=6}
_{mui-docs - node (v18.15.0, x64)}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_2,723,733	_2,724,059	_{+326 (+ 0.01%)}	_~	_~	_{p=0.001 n=6}
_Types	_937,508	_937,620	_{+112 (+ 0.01%)}	_~	_~	_{p=0.001 n=6}
_{Memory used}	_{3,051,278k (± 0.00%)}	_{3,052,194k (± 0.00%)}	_{+916k (+ 0.03%)}	_3,052,129k	_3,052,259k	_{p=0.005 n=6}
_{Parse Time}	_{8.60s (± 0.32%)}	_{8.60s (± 0.39%)}	_~	_8.56s	_8.66s	_{p=0.685 n=6}
_{Bind Time}	_{2.31s (± 0.33%)}	_{2.30s (± 0.48%)}	_~	_2.28s	_2.31s	_{p=0.062 n=6}
_{Check Time}	_{93.06s (± 0.54%)}	_{93.17s (± 0.42%)}	_~	_92.75s	_93.74s	_{p=0.471 n=6}
_{Emit Time}	_{0.31s (± 2.66%)}	_{0.31s (± 2.04%)}	_~	_0.30s	_0.32s	_{p=0.432 n=6}
_{Total Time}	_{104.28s (± 0.49%)}	_{104.37s (± 0.39%)}	_~	_103.93s	_105.02s	_{p=0.575 n=6}
_{self-build-src - node (v18.15.0, x64)}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_1,252,077	_1,252,077	_~	_~	_~	_{p=1.000 n=6}
_Types	_259,856	_259,856	_~	_~	_~	_{p=1.000 n=6}
_{Memory used}	_{2,998,772k (± 9.90%)}	_{2,876,294k (±13.07%)}	_~	_2,389,567k	_3,119,963k	_{p=0.066 n=6}
_{Parse Time}	_{6.59s (± 1.10%)}	_{6.57s (± 1.15%)}	_~	_6.45s	_6.65s	_{p=0.688 n=6}
_{Bind Time}	_{2.24s (± 0.88%)}	_{2.24s (± 0.96%)}	_~	_2.21s	_2.27s	_{p=0.872 n=6}
_{Check Time}	_{42.83s (± 0.46%)}	_{42.70s (± 0.48%)}	_~	_42.33s	_42.88s	_{p=0.471 n=6}
_{Emit Time}	_{3.46s (± 2.09%)}	_{3.52s (± 3.45%)}	_~	_3.37s	_3.72s	_{p=0.261 n=6}
_{Total Time}	_{55.12s (± 0.45%)}	_{55.05s (± 0.47%)}	_~	_54.61s	_55.41s	_{p=0.689 n=6}
_{self-build-src-public-api - node (v18.15.0, x64)}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_1,252,077	_1,252,077	_~	_~	_~	_{p=1.000 n=6}
_Types	_259,856	_259,856	_~	_~	_~	_{p=1.000 n=6}
_{Memory used}	_{3,061,563k (± 9.65%)}	_{3,182,907k (± 0.03%)}	_~	_3,181,853k	_3,184,235k	_{p=0.173 n=6}
_{Parse Time}	_{6.77s (± 1.29%)}	_{6.79s (± 0.96%)}	_~	_6.70s	_6.90s	_{p=0.810 n=6}
_{Bind Time}	_{2.25s (± 1.18%)}	_{2.26s (± 0.86%)}	_~	_2.23s	_2.28s	_{p=0.630 n=6}
_{Check Time}	_{43.08s (± 0.38%)}	_{43.22s (± 0.51%)}	_~	_42.79s	_43.41s	_{p=0.230 n=6}
_{Emit Time}	_{3.50s (± 1.65%)}	_{3.52s (± 2.39%)}	_~	_3.40s	_3.66s	_{p=1.000 n=6}
_{Total Time}	_{55.63s (± 0.45%)}	_{55.78s (± 0.41%)}	_~	_55.34s	_55.96s	_{p=0.298 n=6}
_{self-compiler - node (v18.15.0, x64)}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_264,690	_264,690	_~	_~	_~	_{p=1.000 n=6}
_Types	_104,069	_104,069	_~	_~	_~	_{p=1.000 n=6}
_{Memory used}	_{442,857k (± 0.02%)}	_{442,768k (± 0.01%)}	_{-89k (- 0.02%)}	_442,714k	_442,804k	_{p=0.045 n=6}
_{Parse Time}	_{2.83s (± 0.29%)}	_{2.85s (± 0.62%)}	_~	_2.82s	_2.87s	_{p=0.216 n=6}
_{Bind Time}	_1.16s	_{1.16s (± 0.35%)}	_~	_1.16s	_1.17s	_{p=0.405 n=6}
_{Check Time}	_{16.06s (± 0.31%)}	_{16.05s (± 0.38%)}	_~	_15.96s	_16.13s	_{p=0.810 n=6}
_{Emit Time}	_{1.32s (± 1.25%)}	_{1.32s (± 1.62%)}	_~	_1.28s	_1.34s	_{p=0.461 n=6}
_{Total Time}	_{21.37s (± 0.24%)}	_{21.37s (± 0.32%)}	_~	_21.29s	_21.46s	_{p=1.000 n=6}
_{ts-pre-modules - node (v18.15.0, x64)}
_Errors	₇₂	₇₂	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_225,493	_225,493	_~	_~	_~	_{p=1.000 n=6}
_Types	_94,373	_94,373	_~	_~	_~	_{p=1.000 n=6}
_{Memory used}	_{369,816k (± 0.01%)}	_{369,760k (± 0.02%)}	_~	_369,702k	_369,831k	_{p=0.173 n=6}
_{Parse Time}	_{2.81s (± 1.30%)}	_{2.82s (± 1.24%)}	_~	_2.77s	_2.87s	_{p=1.000 n=6}
_{Bind Time}	_{1.66s (± 1.28%)}	_{1.64s (± 0.83%)}	_~	_1.63s	_1.67s	_{p=0.179 n=6}
_{Check Time}	_{16.59s (± 0.52%)}	_{16.52s (± 0.44%)}	_~	_16.42s	_16.61s	_{p=0.226 n=6}
_{Emit Time}	_0.00s	_0.00s	_~	_~	_~	_{p=1.000 n=6}
_{Total Time}	_{21.07s (± 0.45%)}	_{20.98s (± 0.43%)}	_~	_20.84s	_21.11s	_{p=0.172 n=6}
_{vscode - node (v18.15.0, x64)}
_Errors	₁₁	₁₂	_{🔻+1 (+ 9.09%)}	_~	_~	_{p=0.001 n=6}
_Symbols	_4,077,233	_4,077,814	_{+581 (+ 0.01%)}	_~	_~	_{p=0.001 n=6}
_Types	_1,285,112	_1,285,323	_{+211 (+ 0.02%)}	_~	_~	_{p=0.001 n=6}
_{Memory used}	_{3,864,609k (± 0.00%)}	_{3,865,562k (± 0.00%)}	_{+953k (+ 0.02%)}	_3,865,366k	_3,865,731k	_{p=0.005 n=6}
_{Parse Time}	_{15.69s (± 0.43%)}	_{15.74s (± 0.23%)}	_~	_15.71s	_15.81s	_{p=0.090 n=6}
_{Bind Time}	_{5.35s (± 1.93%)}	_{5.31s (± 0.51%)}	_~	_5.28s	_5.35s	_{p=0.625 n=6}
_{Check Time}	_{115.74s (± 4.24%)}	_{111.68s (± 1.44%)}	_~	_110.10s	_114.49s	_{p=0.128 n=6}
_{Emit Time}	_{48.10s (± 8.39%)}	_{41.88s (±12.61%)}	_{🟩-6.22s (-12.92%)}	_37.45s	_52.15s	_{p=0.045 n=6}
_{Total Time}	_{184.88s (± 3.47%)}	_{174.62s (± 2.77%)}	_{🟩-10.26s (- 5.55%)}	_170.45s	_183.73s	_{p=0.020 n=6}
_{webpack - node (v18.15.0, x64)}
_Errors	₄₀	₄₀	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_380,693	_381,125	_{+432 (+ 0.11%)}	_~	_~	_{p=0.001 n=6}
_Types	_166,792	_166,964	_{+172 (+ 0.10%)}	_~	_~	_{p=0.001 n=6}
_{Memory used}	_{539,543k (± 0.01%)}	_{540,581k (± 0.03%)}	_{+1,038k (+ 0.19%)}	_540,313k	_540,726k	_{p=0.005 n=6}
_{Parse Time}	_{4.71s (± 0.58%)}	_{4.70s (± 0.75%)}	_~	_4.66s	_4.76s	_{p=0.747 n=6}
_{Bind Time}	_{2.07s (± 1.73%)}	_{2.05s (± 1.79%)}	_~	_1.99s	_2.10s	_{p=0.687 n=6}
_{Check Time}	_{23.01s (± 0.38%)}	_{23.03s (± 0.33%)}	_~	_22.92s	_23.11s	_{p=0.688 n=6}
_{Emit Time}	_{0.00s (±244.70%)}	_0.00s	_~	_~	_~	_{p=0.405 n=6}
_{Total Time}	_{29.79s (± 0.29%)}	_{29.79s (± 0.31%)}	_~	_29.62s	_29.88s	_{p=0.809 n=6}
_{xstate-main - node (v18.15.0, x64)}
_Errors	₃₀	₃₀	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_693,864	_694,109	_{+245 (+ 0.04%)}	_~	_~	_{p=0.001 n=6}
_Types	_211,665	_211,698	_{+33 (+ 0.02%)}	_~	_~	_{p=0.001 n=6}
_{Memory used}	_{589,092k (± 0.02%)}	_{590,069k (± 0.04%)}	_{+977k (+ 0.17%)}	_589,868k	_590,345k	_{p=0.005 n=6}
_{Parse Time}	_{4.20s (± 0.36%)}	_{4.17s (± 0.60%)}	_~	_4.15s	_4.22s	_{p=0.107 n=6}
_{Bind Time}	_{1.42s (± 0.74%)}	_{1.41s (± 1.08%)}	_~	_1.38s	_1.42s	_{p=0.282 n=6}
_{Check Time}	_{21.47s (± 2.14%)}	_{21.41s (± 1.94%)}	_~	_20.84s	_21.73s	_{p=0.810 n=6}
_{Emit Time}	_{0.00s (±154.76%)}	_{0.00s (±244.70%)}	_~	_0.00s	_0.01s	_{p=0.595 n=6}
_{Total Time}	_{27.09s (± 1.71%)}	_{26.99s (± 1.46%)}	_~	_26.44s	_27.28s	_{p=0.689 n=6}

System info unknown

Hosts

node (v18.15.0, x64)

Scenarios

Compiler-Unions - node (v18.15.0, x64)
angular-1 - node (v18.15.0, x64)
mui-docs - node (v18.15.0, x64)
self-build-src - node (v18.15.0, x64)
self-build-src-public-api - node (v18.15.0, x64)
self-compiler - node (v18.15.0, x64)
ts-pre-modules - node (v18.15.0, x64)
vscode - node (v18.15.0, x64)
webpack - node (v18.15.0, x64)
xstate-main - node (v18.15.0, x64)

_Benchmark	_Name	_Iterations
_Current	_pr	₆
_Baseline	_baseline	₆

Developer Information:

Download Benchmarks

Dec 11 '25 02:12 typescript-bot

@jakebailey Here are the results of running the top 400 repos with tsc comparing main and refs/pull/62730/merge:

Something interesting changed - please have a look.

Details

microsoft/vscode

11 of 63 projects failed to build with the old tsc and were ignored

src/tsconfig.tsec.json

error TS2345: Argument of type 'ArrayBuffer | ArrayBufferView<ArrayBufferLike>' is not assignable to parameter of type 'string | Blob | BufferSource'.
- src/vs/platform/remote/browser/browserSocketFactory.ts#L191

src/tsconfig.monaco.json

error TS2345: Argument of type 'ArrayBuffer | ArrayBufferView<ArrayBufferLike>' is not assignable to parameter of type 'string | BufferSource | Blob'.
- src/vs/platform/remote/browser/browserSocketFactory.ts#L191

extensions/vscode-test-resolver/tsconfig.json

error TS2345: Argument of type 'Uint8Array<ArrayBufferLike>' is not assignable to parameter of type 'string | BufferSource | Blob'.
- extensions/vscode-test-resolver/src/extension.browser.ts#L101
- extensions/vscode-test-resolver/src/extension.browser.ts#L127

build/checker/tsconfig.electron-browser.json

error TS2345: Argument of type 'ArrayBuffer | ArrayBufferView<ArrayBufferLike>' is not assignable to parameter of type 'string | Blob | BufferSource'.
- src/vs/platform/remote/browser/browserSocketFactory.ts#L191

Dec 11 '25 02:12 typescript-bot

Hm, I guess the generated Navigator is missing a few things

Dec 11 '25 21:12 jakebailey

Hm, I guess the generated Navigator is missing a few things

It's the new Navigation API that @types/dom-navigation is clashing with.

Dec 12 '25 23:12 Renegade334