[gpderetta]

I'm pretty sure GCC has been ABI stable far longer that MSVC which used to break ABI every release.

GCC was forced to break the std::string ABI by the C++11 standard and they have been lobbing ever since against ABI breaks.

[wahern]

GCC/libstdc++ just changed the ABI for std::variant: https://gcc.gnu.org/gcc-16/changes.html#libstdcxx

[pjmlp]

You haven't used Windows in a while I imagine.

MSVC has stabilised the ABI since VS 2015, we are on VS 2026 now.

Due to customer pressure to stop doing exactly that, to the point some ISO C and C++ stuff that requires breaking the ABI has not been implemented thus far.

I am quite certain that I will find ABI breaks in GCC release notes since Slackware 2.0, when I used it for the first time.