Comment by vr46

Last weekend, I took an old cross-platform app written by somebody else between 1994-2006 in C++ and faffed around with it until it compiled and ran on my modern Mac running 14.x. I upped the CMAKE_CXX_STANDARD to 20, used Clang, and all was good. Actually, the biggest challenge was the shoddy code in the first place, which had nothing to do with its age. After I had it running, Sonar gave me 7,763 issues to fix.

The moral of the story? Backwards compatibility means never leaving your baggage behind.