Mixing C++ language versions

From: Kenneth Porter (shiva_at_[hidden])
Date: 2022-05-12 10:52:03

Can one mix compilation units or libraries built with different versions of 
C++? If I build my DLL with C++20, can a customer use it with their C++11 
app? How are compiler and library vendors dealing with this? Do/will they 
supply multiple binaries for each C++ version? (I'm already building for 
each architecture plus release/debug. Adding the compiler version explodes 
the number of binaries to build and test.)