Next.js Daily: React Upgrade and Turbopack Fixes

Next.js upgraded to the latest React build and merged 16 pull requests addressing Turbopack analyzer bugs, CI improvements, and documentation updates. Key fixes include corrections to logical operator evaluation and require.context regex patterns.

Duration: PT1M57S

Episode overview

This episode is a short developer briefing from Next.js Daily.

It explains recent repository work in plain language.

  • Show: Next.js Daily
  • Published: 2026-05-28T10:02:40Z
  • Audio duration: PT1M57S

Transcript excerpt

This excerpt keeps the crawler page concise. Listen to the episode or use the RSS feed for the full update.

Good morning, I'm your host with Next.js Daily for May 28th, 2026.

The Vercel team merged 16 pull requests yesterday, led by a React upgrade from the release bot bringing Next.js to React build c0cd4d5d. This update spans 86 files with over 2,000 lines of changes across the compiled React DOM modules.

Sam Poder fixed critical bugs in Turbopack's analyzer, addressing swapped short-circuit evaluation for AND and OR operators in string and nullish-related methods. A separate fix corrected the default regex for require.context, which was incorrectly rejecting valid relative paths due to an escaped backslash issue.

Niklas Mischkulnig resolved an instrumentation client bug where type:module in package.json caused runtime errors because Turbopack generated CommonJS code that browsers tried to parse as ESM.

On the infrastructure side, Benjamin Woodruff increased test concurrency from 8 to 12 to better utilize 16-core CI machines and switched non-webpack-specific test jobs to use Turbopack as the default bundler. The team also renamed the Graphite CI optimizer token and improved build cache naming for clearer…

Sebastian Silbermann added regression tests for static metadata files with…

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