The MCP SDK has been updated to support protocol version 2025-11-25, with the supported versions list now including: 2025-11-25, 2025-06-18, 2025-03-26, 2024-11-05, 2024-10-07.
Evidence
jn at line 255378 (protocol version constant "2025-11-25") and UB1 at line 255540 (supported versions array)
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
