History of release 2 changes

In crates/oh/src/main.rs, lines 1523–1614 on 2bae995eb2f1232ed907223a93764a260522ed72604fe56f46bc8199c4c8f330. 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 1523,1614:crates/oh/src/main.rs.