Also in this release: Link headers that are returned by a middleware are now merged with other ones that Next.js might set for fonts & images.

If you've been waiting with upgrading to Next.js 15 due to this, now's the time! The next-intl docs have now been updated to Next.js 15 as well.
Reposted from Next.js
Next.js 15.2

• Redesigned Error UI & Improved Stack Traces
• Streaming Metadata
• Turbopack Performance Improvements
• View Transitions (experimental)
• Node.js Middleware (experimental)

nextjs.org/blog/next-15-2

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