Signal whether the negotiated protocol version is modern (2026-07-28 / draft). The HTTP transport uses this to skip Last-Event-ID resumption (GET) that the draft removed; a no-op on stdio and on transports where the flag is irrelevant.
Signal whether the negotiated protocol version is modern (2026-07-28 / draft). The HTTP transport uses this to skip Last-Event-ID resumption (GET) that the draft removed; a no-op on stdio and on transports where the flag is irrelevant.