LTRAC-1731: build(core) - Upgrade Next.js to 16.3.4 - #3202
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🦋 Changeset detectedLatest commit: 53c02fc The changes in this PR will be included in the next version bump. This PR includes changesets to release 1 package
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Next.js 16.3.3 patches two critical advisories: unauthenticated remote code execution on Windows-hosted servers (GHSA-p293-qw3h-jr36), and unauthenticated remote code execution in the Image Optimization API when AVIF files are used (GHSA-2xp9-vwfh-vxw4). 16.3.4 re-enables AVIF image optimization after that fix. Also picked up are backported fixes for optimistic-routing bugs that caused repeated prefetch loops, and cache-entry reuse that discards only entries predating a tag revalidation rather than all of them. Kept separate from the @opennextjs/cloudflare upgrade so the security fix can ship on its own. The currently pinned adapter (1.17.3) accepts this version -- its peer range ends in ^16.1.5 -- so this lands independently. It is also a prerequisite for moving the adapter past 1.20.2, which requires Next 16.3.3. Refs LTRAC-1731 Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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Linear: LTRAC-1731
What/Why?
Bumps
nextfrom~16.2.11to~16.3.4. 16.3.3 patches two critical advisories:16.3.4 re-enables AVIF image optimization after that fix.
This is deliberately split from the
@opennextjs/cloudflareupgrade (LTRAC-1732) so the security fix can ship on its own. The two are strictly ordered: the currently pinned adapter 1.17.3 accepts Next 16.3.4 because its peer range ends in^16.1.5, so this PR stands alone — but 1.20.5 requires Next >= 16.3.3, so the adapter bump cannot merge first. LTRAC-1732 is stacked on this branch.Also picked up: backported fixes for optimistic-routing bugs causing repeated prefetch loops, and cache-entry reuse that discards only entries predating a tag revalidation rather than all of them.
Testing
coretsc --noEmit— cleancorevitest run— 65/65 passingpnpm installreports no unmetnextpeer against@opennextjs/cloudflare@1.17.3, confirming this lands independentlyNot covered: a full
next build/ OpenNext bundle, which needs store credentials. Worth running before merge.Note for anyone verifying on a cold checkout:
coretypecheckneedspnpm generatefirst (forbigcommerce.graphql/bigcommerce-graphql.d.ts) and a built@bigcommerce/catalyst-client, otherwise it fails with unrelatednever/implicit-anyerrors.Migration
None. Single dependency bump, no API or config changes.
Refs LTRAC-1731