v1.61.1

karpathy/nn-zero-to-herov1.61.1Jun 23, 2026by dgozman

AI Summary

Fixes multiple regressions and bugs including issues with the Expect matcher, Playwright UI mode reporting incorrect bytes, and ESM loader failures on Node 22.15.

Key Highlights

Fixes Expect matcher overriding default implementation
Fixes Playwright UI mode byte reporting
Fixes ESM loader failures on Node 22.15

Full Release Notes

### Bug Fixes

- #41365 [Bug]: Expect.Extend matcher with same name as default matcher in same expect instance overrides default matchers implementation to custom matcher
- #41351 [Bug]: Playwright UI mode: apiRequestContext._wrapApiCall reports unexpected number of bytes (same test passes in headed mode)
- #41360 [Bug]: Trace viewer: message times in websockets are downscaled by 1000
- #41311 [Bug]: [Regression]: Sync loader throws "context.conditions?.includes is not a function" on Node 22.15
- #41371 [Regression]: Sync ESM loader (registerHooks) fails to resolve extensionless .ts subpath imports across pnpm workspace symlinks