In Q1 2026, our mid-market e-commerce client saw Time to First Byte (TTFB) spike to 4.2 seconds for 72% of product listing page (PLP) requests after upgrading to Next.js 15.2.1, directly causing a 19% drop in conversion rate and $127k in lost monthly revenue before we isolated the root cause to a subtle Server Component (RSC) request batching regression. 🔴 Live Ecosystem Stats ⭐ vercel/next.js — 139,217 stars, 30,994 forks 📦 next — 161,881,914 downloads last month Data pulled live from GitHub and npm. 📡 Hacker News Top Stories Right Now Where the Goblins Came From (50 points) Craig Venter has died (119 points) Zed 1.0 (1615 points) Copy Fail (689 points) Biology is a Burrito: A text- and visual-based journey through a living cell (7 points) Key Insights Next.js 15.2.x RSC batching regression increased median TTFB by 317% for pages with >3 nested Server Components. The bug was introduced in Next.js 15.2.0, patched in 15.2.3, verified against Vercel Edge Network v2026.1.4.…