Sourced from next's releases.

v16.2.3

[!NOTE] This release is backporting security and bug fixes. For more information about the fixed security vulnerability, please see https://vercel.com/changelog/summary-of-cve-2026-23869. The release does not include all pending features/changes on canary.

Core Changes

• Ensure app-page reports stale ISR revalidation errors via onRequestError (#92282)
• Fix [Bug]: manifest.ts breaks HMR in Next.js 16.2 (#91981 through #92273)
• Deduplicate output assets and detect content conflicts on emit (#92292)
• Fix styled-jsx race condition: styles lost due to concurrent rendering (#92459)
• turbo-tasks-backend: stability fixes for task cancellation and error handling (#92254)

Credits

Huge thanks to @​icyJoseph, @​sokra, @​wbinnssmith, @​eps1lon and @​ztanner for helping!

• d5f649b v16.2.3
• 2873928 [16.x] Avoid consuming cyclic models multiple times (#75)
• d7c7765 [backport]: Ensure app-page reports stale ISR revalidation errors via onReque...
• c573e8c fix(server-hmr): metadata routes overwrite page runtime HMR handler (#92273)
• 57b8f65 next-core: deduplicate output assets and detect content conflicts on emit (#9...
• f158df1 Fix styled-jsx race condition: styles lost due to concurrent rendering (#92459)
• 356d605 turbo-tasks-backend: stability fixes for task cancellation and error handling...
• 3b77a6e Fix DashMap read-write self-deadlock in task_cache causing hangs (#92210)
• b2f208a Backport: new view-transitions guide, update and fixes (#92264)
• See full diff in compare view

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