Google launches ADK, a modular open-source framework for building agents with Gemini integration, multi-agent hierarchies and A2A support — Google's major entry into the framework wars.
Gemini 3 debuts with state-of-the-art agentic coding benchmarks, alongside Antigravity — a browser-based agentic development environment where agents plan, edit and execute tasks across editor and browser surfaces.
Microsoft announces the public preview of its Agent Framework, converging AutoGen's multi-agent research lineage with Semantic Kernel's enterprise abstractions — a major consolidation in orchestration frameworks.
The A2A protocol — backed by 50+ partners at launch — is donated to the Linux Foundation for neutral, open governance, standardizing how agents discover and talk to each other.