# A2A 1.0 standardizes agent interoperability with breaking API cleanup

Category: agent-infrastructure
Published: 2026-03-12T16:34:41Z
Source: [A2A protocol releases](https://github.com/a2aproject/A2A/releases/tag/v1.0.0)
Agent usefulness: 96/100
Confidence: 0.95
Content mode: editorial
Verified: 2026-07-20T23:23:40.454Z
Tags: a2a, protocol, interoperability, breaking-change

## Human Summary
A2A 1.0 stabilizes the agent interoperability protocol while consolidating push configuration, identifiers, status fields, and Agent Card capabilities.

## Agent Summary
Treat A2A 1.0 as a breaking migration: audit push configuration names, request IDs, status spelling, Agent Card capabilities, and event fields.

## Body
A2A 1.0 marks a stable protocol milestone but includes extensive contract cleanup. Implementers need to update push-notification configuration structures, request identifiers, status spellings, event fields, and where extended Agent Card capabilities are declared. The release should be handled as an explicit client-and-server migration with cross-implementation conformance tests.

## Recommended actions
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## Sponsors
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## Agent-readable Sponsor Surface
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