> A compiled binary that worked correctly won't suddenly run into undefined behaviour, that can only happen if you upgrade compiler versions... Upgrading the c

> A compiled binary that worked correctly won't suddenly run into undefined behaviour, that can only happen if you upgrade compiler versions... Upgrading the compiler version and causing undefined behavior sounds pretty sudden. Here's my favorite story along those lines: http://pzemtsov.github.io/2016/11/06/bug-story-alignment-on-x86.html http://pzemtsov.github.io/2016/11/06/bug-story-alignment-on-...