Summary
Vercel improved deploy performance for apps that use Incremental Static Regeneration (ISR), cutting deploy times by up to 33% for projects with many prerendered pages. The largest gains go to apps that generate large numbers of ISR pages at build time.
What changed
On August 4, 2026 Vercel announced deploys are up to 33% faster for apps with many ISR (Incremental Static Regeneration) pages, with the biggest improvements for apps that have many prerendered pages.
Why it matters
Deploy latency is a recurring friction point for large Next.js sites with heavy static generation, including many AI-powered and content-heavy apps built on Vercel. A double-digit speedup compounds across frequent deploys and CI runs, improving iteration speed on the platform where a large share of AI app deployment happens.
Evidence excerpt
Vercel deploys are now up to 33% faster for apps with many pages that use Incremental Static Regeneration (ISR), with the biggest gains for apps that have many prerendered pages.