Spec Watch
Track what changes in MCP Independent analysis of specification releases, proposals, implementation impact, and migration guidance—so you can build with confidence.
2025-03-26 Stable
2025-06-18 Stable
Next draft Draft
Future Proposed
MCP specification release This representative entry demonstrates the release template. Official dates and version-specific analysis will be published only after technical review.
View official specification What changed Protocol changes summarized with primary sources Behavioral changes separated from editorial clarifications Compatibility notes recorded by implementation area Why it matters Release notes focus on concrete effects for client developers, server developers, and operators.
Structured content Tracking fixture for proposal analysis and implementation impact.
Affected areas: clients, servers, capabilities Proposed Capability discovery Tracking fixture for proposal analysis and implementation impact.
Affected areas: clients, servers, capabilities Draft Authorization profiles Tracking fixture for proposal analysis and implementation impact.
Affected areas: clients, servers, capabilities Proposed Stay up to date with MCP Get independent guides, specification updates, and implementation notes in your inbox.
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