Comment by xp84

It was arguably always halfhearted at best. Look at how behind they were on many things for years. They update things, I assume, when necessary to make the build toolchain work, and possibly to hold onto their POSIX compliance status which some us government buying contracts demand. The fact they changed the default shell to zsh instead of that decade(s)-old version of bash they used to have (avoiding a GPL license change, I think?) was a miracle.