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Next.js changelog digest

Mar 24 - Mar 30, 2025. Useful releases, risky migrations, and noisy updates from the Next.js channel.

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Next.js updates in 2025-w13

19.1.0 (March 28, 2025)

  • - Introduced the dev‑only `captureOwnerStack` API, updated `useId` format, added dev warnings and removed `React.act` from production builds.
  • - Expanded Suspense to work on client, server, and during hydration with improved hydration scheduling, priority handling, and reduced GC pressure; added streaming support and the experimental `unstable_prerender` API for React Server Co...
  • - Added new DOM features (beforetoggle/toggle events on <dialog>, support for <script> and <template> inside <select>, exports field for useSyncExternalStore, Parcel integration) and fixed numerous bugs across React DOM, Native, and Serv...

v4.0.17

  • Fix CLI hang when processing Ruby files
  • Resolve issue #17383

Sentry JavaScript SDK 9.9.0

  • Adds new NextJS integration features to the JavaScript SDK.
  • Includes support for upcoming Sentry capabilities.
  • Improves overall performance and stability.

Anomaly detection simplifies alert configuration–now in beta

  • Introduce anomaly‑based alerts in open beta
  • Automatically detect thresholds and adjust for seasonality
  • Simplify creation of metrics‑based alerts

Performance Issues Enhanced with New Trace View

  • Introduces a new trace view to diagnose performance issues
  • Enhances visibility into performance bottlenecks

v4.0.16

  • Added support for literal values in `value('…')` and `modifier('…')`, plus missing suggestions for `spacing(value(integer, number))`, and introduced the `::webkit-details-marker` pseudo-element to the marker variant.
  • Fixed several bugs: class extraction after '(' in Pug, CLI error when input and output resolve to the same file, proper CSS update propagation in Vite, and ensured @keyframes for theme animations are emitted when referenced after a comma.
  • Added preprocessing of Slim templates embedded in Ruby files and other minor stability improvements.

Issue Stream UI Enhancements

  • Improved navigation within the issue stream for faster access to items.
  • Enhanced readability and visual clarity with updated UI styling.