History of router 5 changes

In crates/oxy-server/src/lib.rs, lines 397–405 on be451356e3ef50e074343ccafba1c1174e261c2bfe9c5ff13d6a26ba884ee4d4. 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 397,405:crates/oxy-server/src/lib.rs.