Sandbox SDK v3 defaults to vercel/sandbox/universal:latest on Ubuntu 26.04 with Node 24, Python 3.14, and preinstalled opencode, claude-code, codex and pi. Old runtime stays as a deprecated alias; Amazon Linux stays only via runtime. Source images live in the public vercel/sandbox repo.11
| Use it | Claude Sonnet 5 · $2/$10 made permanent |
| Breaking | OpenAI Agents Python 0.20.0 |
| Use it | vLLM 0.27.0 |
| Use it | Cline v4.1.8 |
One issue every weekday. The whole thing, not a teaser.