Agent Delta
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.
What an issue covers
Model & API releases
New models, breaking changes and migration gotchas, from official changelogs.
Deprecations with deadlines
What's going away, when, and which strings to grep for.
SDKs, frameworks & MCP
Agent framework releases, security fixes and protocol changes.
Evals & observability
Tools that help you measure and debug agents in production.
A "Do this" for every item
One concrete action per change. Every item links its official source.
Newsletter section · Written by Juan Munoz.