History of dispatch 2 changes

In crates/hub/src/protocol.rs, lines 238–256 on d1c9e8e3273d83c0a4b62390bad2375f09b277c87fd99f3a4eae30269380aadf. 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 238,256:crates/hub/src/protocol.rs.