AgentΔDelta
What changed in AI this week, and what to change in your agent.
A free weekly newsletter for people already building AI agents. Five changes that matter, each with what shipped, why you care, and what to do about it.
Subscribe free →- Model & API releasesNew models, breaking changes and migration gotchas, from official changelogs.
- Deprecations with deadlinesWhat's going away, when, and which strings to grep for.
- SDKs, frameworks & MCPAgent framework releases, security fixes and protocol changes.
- Evals & observabilityTools that help you measure and debug agents in production.
- A "Do this" for every itemOne concrete action per change. Every item links its official source.