Streamdown 1.6 is now available to run faster and ship less code

T1Covered by 1 source · first reported by Vercel (blog + changelog) at 24 Nov 2025, 13:00 UTC

Vercel Streamdown 1.6 is now available with major improvements to performance, bundle size, and the authoring experience. Streamdown now runs faster and ships less code thanks to memoization, LRU caching, optimized string operations, and the removal of regexes. Several product enhancements include…