pub const PROTOCOL_VERSION: u32 = 4;Expand description
Current wire protocol version. Protocol 3 adds read-only runtime, semantics,
layer and work-count inspection, rectangle highlighting, and session
take-over. Protocol 4 adds editor metadata on DebugProperty (options,
min, max, step) and DebugOption::PerformanceOverlay; all additions
decode with defaults on older peers.