OpenSSH 9.0 released

Workaround? Not using chattr :( alas, I want to use the immutable bit heavily, and this also breaks every backup program I've ever seen whenever a file is hardlinked (those that support setting the immutable bit at all): they all restore the first link, set its attributes (including immutability), then assume they can make further hardlinks to it later on. Not without unsetting immutability around the hardlinking, you can't...