v0.189.0 spec/v0.4.0

Name: agent-host-protocol
Author: microsoft

microsoft/agent-host-protocolJun 19, 2026 → Jun 19, 20260 days between releases

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Reading what changed between v0.189.0 and spec/v0.4.0. This page updates automatically — usually within a minute.

The Two Releases

v0.189.0

Jun 19, 2026· 4 months ago

This release focuses on dashboard improvements, proxy hardening, and SDK enhancements, including the upgrade to Tailwind v4 and better connection handling for Python clients.

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spec/v0.4.0

AHP Spec v0.4.0

Jun 19, 2026· 4 months ago

Core protocol update introducing the chat channel, typed message origins, and metadata fields for per-event context.

Full release notes