spec/v0.9.0 v2.2.0
microsoft/agent-host-protocolAug 28, 2026 → Aug 28, 20260 days between releases
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The Two Releases
AHP Spec v0.9.0
Aug 28, 2026· 2 months ago
The AHP specification is updated to version 0.9.0, defining the new automation catalogue and durable error handling mechanisms.
Full release notesECC 2.2.0: Guided Setup, Antigravity 2.0, and the Nasiko CLI Bridge
Aug 28, 2026· 2 months ago
v2.2.0 introduces a guided installer for configuring Claude Code, Codex, and Kimi, alongside native support for Antigravity 2.0 and an experimental Nasiko CLI bridge. The release emphasizes safer migrations and expanded workflow libraries to support a wider range of agent lifecycles.
Full release notes