Microsoft basically sabotaged C99 by not implementing any of its features until around 2015 in the Visual Studio C compiler, and then still took until 2019 befo

Microsoft basically sabotaged C99 by not implementing any of its features until around 2015 in the Visual Studio C compiler, and then still took until 2019 before they acknowledged their failure and started supporting more recent C versions again (MSVC is still reliably behind Clang and GCC when it comes to their C frontend though). And back around 2010 MSVC still mattered a lot (which sounds weird from today's pov where most developers appear to have moved to Linux). But OTH, few projects actually need C11 features (and C11 actually took one thing away from C99: VLAs - nothing of value was lost though). C23 might be the first version since C99 that's actually worth upgrading to for many C code bases.