adk_mcp 2026.7.30

MCP protocol client primitives for ADK Dart packages.

Changelog

2026.7.30

• Updated MCP protocol support to official specification version 2026-07-28 (mcpLatestProtocolVersion = '2026-07-28').
• Added RPC method constants mcpMethodServerDiscover (server/discover) and mcpMethodSubscriptionsListen (subscriptions/listen).
• Expanded supported protocol versions set mcpSupportedProtocolVersions with '2026-07-28'.

2026.7.24

• Bumped package version to 2026.7.24.
• Synced MCP package release with the adk_dart 2026.7.24 rollout.

2026.7.11

• Bumped package version to 2026.7.11.
• Synced MCP package release with the adk_dart 2026.7.11 rollout.
• Added ADK 2.0 support including Managed Agent and Remote MCP Server integration for server-side tool execution via the Interactions API.

2026.6.6

• Bumped package version to 2026.6.6.
• Synced MCP package release with the adk_dart 2026.6.6 rollout.
• Aligned the non-IO stdio stub API with the IO implementation for task, progress, metadata, and notification helpers.
• Hardened stdio timeout cancellation coverage to avoid timing-dependent false negatives.
• ADK-facing MCP session cleanup and toolset handling updates landed in the main adk_dart MCP integration layer.

2026.4.17

• Bumped package version to 2026.4.17.
• Synced MCP package release with the adk_dart 2026.4.17 rollout.

2026.3.21

• Bumped package version to 2026.3.21.
• Added MCP client capability override support during initialization.
• Added ADK-facing sampling callback/capability wiring coverage through the adk_dart MCP toolset stack.
• Synced MCP package release with the adk_dart 2026.3.21 rollout.

2026.3.13

• Bumped package version to 2026.3.13.
• Synced MCP package release with the adk_dart 2026.3.13 rollout.

2026.3.6

• Bumped package version to 2026.3.6.
• Synced MCP package release with the adk_dart 2026.3.6 rollout.

2026.3.2+4

• Bumped package version to 2026.3.2+4.
• Synced MCP package release with the adk_dart 2026.3.2+4 rollout.

2026.3.2+3

• Bumped package version to 2026.3.2+3.
• Synced MCP package release with the adk_dart 2026.3.2+3 rollout.

2026.3.2+2

• Bumped package version to 2026.3.2+2.
• Synced MCP package release with the adk_dart 2026.3.2+2 rollout.

2026.3.2+1

• Bumped package version to 2026.3.2+1.
• Synced MCP package release with the adk_dart 2026.3.2+1 build rollout.

2026.3.2

• Bumped package version to 2026.3.2.
• Synced MCP package release with the adk_dart 2026.3.2 rollout.

2026.3.1

• Bumped package version to 2026.3.1.
• Synced MCP package release with the adk_dart 2026.3.1 rollout.
• Carried forward MCP transport/session hardening behavior covered by existing tests.

2026.2.28

• Introduced date-based versioning format YYYY.M.D.
• Added MCP protocol hardening updates aligned with the 2025-11-25 spec workstream.
• Expanded remote/stdio lifecycle and request handling test coverage.