From what I can gather, a majority of the problems reported there are new compiler warnings being triggered. Especially if you enable all compiler warnings to c

From what I can gather, a majority of the problems reported there are new compiler warnings being triggered. Especially if you enable all compiler warnings to catch potential defects, any upgrade to a new compiler version will typically introduce a ton of new warnings that you have to work around. Edit: There are also quite a few deprecation warnings, which are also not errors per se, but nevertheless you'd want to avoid using deprecated stuff of course.