History of dispatch 2 changes

In crates/hub/src/protocol.rs, lines 349–367 on 7fff30c4f5e20b229a2fc857ee80b7dc0879f4328aae78921f5951419788cd03. Every change that wrote or deleted one of these lines, or deleted a line from between them. Exact, because each line keeps its identity across edits; edits elsewhere in the file are not here. Also: oxy log -L 349,367:crates/hub/src/protocol.rs.