chore: release v3.6.0

[github-actions]

🤖 New release

• rmcp-macros: 3.5.1 -> 3.6.0
• rmcp: 3.5.1 -> 3.6.0

Changelog

rmcp-macros

3.6.0 - 2026-10-15

Fixed

• ship LICENSE in rmcp and rmcp-macros crates (#1342)

Other

• combine AI issue triage with a maintainer rotation as the responsible reviewer (#1260)

rmcp

3.6.0 - 2026-10-15

Added

• (transport) add non-blocking stdio_pipes transport (#1304)

Fixed

• (streamable-http-client) handle error responses to initialize (#1361)
• (transport) bound the incoming line buffer in AsyncRwTransport (#1049)
• (model) reject malformed JSON-RPC messages with conflicting result and error fields (#1283) (#1287)
• ship LICENSE in rmcp and rmcp-macros crates (#1342)
• (streamable-http-server) release the session map lock before waiting on a session (#1323)
• (rmcp) gate client- and server-only helpers behind their features (#1329)
• cancel pending request tokens after transport EOF (#1333)
• (rmcp) import base64-only prompt content types under the feature (#1314)

Other

• combine AI issue triage with a maintainer rotation as the responsible reviewer (#1260)

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