History of release 2 changes

In crates/oh/src/main.rs, lines 1656–1747 on 05f1a85a284253adc4e796dba60b0a0556198b5e2be230687802a9a5ee3af821. 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 1656,1747:crates/oh/src/main.rs.