You're right in that a stable ABI goes a long way to keep old binaries working! My point is about this sort of thing: > [...] anybody who has read the Old New

You're right in that a stable ABI goes a long way to keep old binaries working! My point is about this sort of thing: > [...] anybody who has read the Old New Thing blog (https://blogs.msdn.microsoft.com/oldnewthing/ https://blogs.msdn.microsoft.com/oldnewthing/) or Raymond Chen's chapter on Windows backwards compatibility (http://ptgmedia.pearsoncmg.com/images/9780321440303/samplechapter/Chen_bonus_ch01.pdf http://ptgmedia.pearsoncmg.com/images/9780321440303/samplech..., PDF) will be both impressed and horrified at the lengths the Windows team went to in order to avoid breaking programs. https://news.ycombinator.com/item?id=13450629 https://news.ycombinator.com/item?id=13450629