MCP spec: 2026-07-28 release candidate published
A release candidate for the Model Context Protocol's 2026-07-28 revision is available in draft form. The spec is explicitly not final and may change before the stable release; SDKs adopt on their own schedule and the prior revision stays in use for an undetermined period.
PUBLISHED2026-05-29
OBSERVED2026-08-11
AGE2mo
SOURCES1
2026-07-28published as a release candidate, in draft form.- Source states changes may still land between RC and final.
- SDKs adopt at their own pace; prior spec revision remains in use indefinitely.
- Clients and servers settle on a revision via the spec's version negotiation.
- Change detail is in a linked draft changelog, not this note.
COMMUNITY
No curated reactions recorded for this event. Facts and takes are kept in separate layers — community context is added by hand, never blended into the record above.