Searching a large codebase for a constant (like "DL", plus tracing all related variable use if something is assigned this or related value), and replacing the l

Searching a large codebase for a constant (like "DL", plus tracing all related variable use if something is assigned this or related value), and replacing the logic is a relatively easy kind of change. Especially in the modern day when we got all those nice semantic analysis and code transformation tools. Especially if they got proper tests. Certainly way easier than replacing use of a deprecated API (and people do this kind of stuff all the time).