CLAIM-2026-08-26-02
Sampling and Logging were deprecated in the same revision and under the same proposal, SEP-2577; the suggested migration for Logging is stderr on stdio transports or OpenTelemetry for observability.
Why it matters
The same release moved both the scope boundary and the observability boundary out of the protocol and on to the implementer.
Sources
- modelcontex2026deprecate
- modelcontex2026key
- github2026sep