0.3.0 (2025-07-30)

⚠ BREAKING CHANGES

• Add mTLS to SecuritySchemes, add oauth2 metadata url field, allow Skills to specify Security (#901)
• Change Well-Known URI for Agent Card hosting from agent.json to agent-card.json (#841)
• Add method for fetching extended card (#929)

Features

• Add signatures to the AgentCard (#917) (ef4a305)
• Add method for fetching extended card (#929) (2cd7d98)
• Add mTLS to SecuritySchemes, add oauth2 metadata url field, allow Skills to specify Security (#901) (e162c0c)

Bug Fixes

• spec: Add SendMessageRequest.request json_name mapping to message (#904) (2eef3f6)
• spec: Add Transport enum to specification (#909) (e834347)

Code Refactoring

• Change Well-Known URI for Agent Card hosting from agent.json to agent-card.json (#841) (0858ddb)

0.2.6 (2025-07-17)

Bug Fixes

• Type fix and doc clarification (#877) (6f1d17b)
• Update json names of gRPC objects for proper transcoding (#847) (6ba72f0)

0.2.5 (2025-06-30)

⚠ BREAKING CHANGES

• spec: Add a required protocol version to the agent card. (#802)
• Support for multiple pushNotification config per task (#738) (f355d3e)

Features

• spec: Add a required protocol version to the agent card. (#802) (90fa642)
• spec: Support for multiple pushNotification config per task (#738) (f355d3e)

Documentation

• update spec & doc topic with non-restartable tasks (#770) (ebc4157)

Full Changelog: v0.2.3...v0.2.4

• feat: Add support for multiple transport announcement in AgentCard

0.2.3 (2025-06-12)

Bug Fixes

• Address some typos in gRPC annotations (#747) (f506881)

0.2.2 (2025-06-09)

⚠ BREAKING CHANGES

• Resolve spec inconsistencies with JSON-RPC 2.0

Features

• Add gRPC and REST definitions to A2A protocol specifications (#695) (89bb5b8)
• Add protocol support for extensions (#716) (70f1e2b)
• spec: Add an optional iconUrl field to the AgentCard (#687) (9f3bb51)

Bug Fixes

• Protocol should released as 0.2.2 (22e7541)
• Resolve spec inconsistencies with JSON-RPC 2.0 (628380e)

0.2.1 (2025-05-27)

Features

• Add a new boolean for supporting authenticated extended cards (#618) (e0a3070)
• Add optional referenceTaskIds for task followups (#608) (5368e77)