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Microsoft published microsoft/agent-framework python-1.4.0 (microsoft/agent-framework). This release signal is evidence of what shipped, changed, or was packaged for users. High-signal details: python-1.4.0 Repository: microsoft/agent-framework Tag: python-1.4.0 Published: 2026-05-15T00:37:33Z Prerelease: no Release notes: [1.4.0] - 2026-05-14 Added -.... onlylabs links this event to 1 captured evidence page and 6 related release signals.

Microsoft Release: microsoft/agent-framework python-1.4.0

Captured source

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GitHub/github.com/microsoft/agent-framework

microsoft/agent-framework python-1.4.0

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published May 15, 2026seen Jun 26captured 2dhttp 200method plain

python-1.4.0

Repository: microsoft/agent-framework

Tag: python-1.4.0

Published: 2026-05-15T00:37:33Z

Prerelease: no

Release notes:

[1.4.0] - 2026-05-14

Added

agent-framework-core: Forward MCP tool call metadata (#5815)
agent-framework-core: Support list[str] arguments for file-based skill scripts (#5850)
agent-framework-core: Strip server-issued response item IDs under storage (#5690)
agent-framework-ag-ui: Add tool result display channel (#5762)
agent-framework-ag-ui: Promote to release candidate stage (#5844)
agent-framework-devui: Improvements for DevUI (#5840)

Changed

agent-framework-core: [BREAKING] — experimental skills API] Align file skill folder discovery with agentskills.io spec (#5807)
agent-framework-core: [BREAKING] — experimental skills API] Extract skill spec metadata into SkillFrontmatter (#5775)
agent-framework-devui: [BREAKING] Tighten default access controls and CORS posture (#5740)
agent-framework-a2a: [BREAKING] Migrate to a2a-sdk v1.0 (#5752)

Fixed

agent-framework-a2a: Fix A2A v1.0 non-streaming response and sample runtime issues (#5849)
agent-framework-foundry-hosting: Reject path-traversal context IDs in checkpoint storage (#5851)
agent-framework-core: Prevent MCP message_handler deadlock on notification reload (#4866)