I'm going to remove the DragonFly 2.10/2.11 binary pkgsrc packages from mirror-master.dragonflybsd.org on November 10th. I'm pretty sure nobody's using them at this point, as they are very out of date. Anyone not on the 2.10 or 2.11 releases will be unaffected. If you do need them, now is the time to make a backup.