Improvements / v2.1.274
Default to the v2 MCP client
CHANGELOG · original
Changed Bedrock, Vertex, Foundry and telemetry-disabled installs to use the v2 MCP client and MCP 2026-07-28 negotiation with direct HTTP servers by default, as other installs already do (opt out: MCP_SDK_GENERATION=v1 or MCP_PROTOCOL_NEGOTIATION=legacy) Open official changelog ↗ Related documentation
Background on the feature; see the changelog above for this specific change.