And stdint.h, variadic macros, restrict, inline (admittedly less necessary as compilers become more clever), flexible array members... I mainly still stick to

And stdint.h, variadic macros, restrict, inline (admittedly less necessary as compilers become more clever), flexible array members... I mainly still stick to variable declaration at the beginning of the block out of habit but it would be a pain for me to go back to C89 and forsake all these other nice features.