chore(deps): upgrade Next.js 14 → ^15.5.18 (major, security)#75
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Picks up the CVSS 8.6 security advisory by crossing the 14→15 major boundary. This is a major upgrade with known behavioral changes — not a simple patch. Manual review recommended. Codebase risk assessment (pre-bump): - App Router structure (app/app/) but no Server Component uses of cookies() / headers() / draftMode() / params props / searchParams props — none of the async-API breaking changes apply. - Only client-side useSearchParams() in app/app/page.tsx (unaffected by the 14→15 async change; that hook stays sync). - No middleware or Route Handlers using next/server. Things to double-check at review: - fetch() defaults: Next 15 changed fetch from cached-by-default to uncached-by-default. If anything relies on implicit caching, add explicit `cache: 'force-cache'`. - React stays on ^18 (Next 15.5 still supports React 18 as a peer). Bumping to React 19 is a separate concern. Lockfile re-resolved; next@15.5.18 now pinned.
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Summary
Upgrades
nextfrom^14.2.30to^15.5.18to pick up the CVSS 8.6 security advisory.Changes
app/package.json—next: ^14.2.30→^15.5.18app/package-lock.json— re-resolved;next@15.5.18pinned.Test plan
npm install && npm run buildsucceeds on a fresh clone