ChatGPT 5 Flops and More Web Dev News You Missed

Weekly dev roundup: Next.js 15.5 cache changes, Turbopack/PPR updates, GPT-5 reality check, Payload 3.51–3.52, Figma AI tools, Tailwind fixes, Vercel runtime cache + Node 18 deprecation, Cursor & Railway news. I also cover Claude Sonnet 4’s 1M-token context, v0.app, and BotID.