History of router 5 changes

In crates/oxy-server/src/lib.rs, lines 379–387 on 47ce8b8e2d4b900bead43a3741c6fc8d8115451ce6a88ff9d603bb2b8d1407c2. 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 379,387:crates/oxy-server/src/lib.rs.