CLAIM-2026-08-26-06

SEP-2577, merged on 15 May 2026, gives the rationale for all three deprecations as low adoption relative to implementation complexity, and for Roots specifically "vague semantics, overlaps with tool parameters and server configuration"; it describes the change as advisory only, with no wire-level protocol modification.

Why it matters

The deprecation was a maintenance decision, not a security one. Any argument that treats it as a security regression is arguing with a claim nobody made.

Sources

• github2026sep