History of release 2 changes

In crates/oh/src/main.rs, lines 769–860 on 739a763a558c04cb6e59e66ed47efa071fa5e97b75c38648dfd040da6c249098. 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 769,860:crates/oh/src/main.rs.