V4-mapped addresses out, TCP MTU discovery in

Sepherosa Ziehau has posted a note that V4-mapped addressing is no longer supported in DragonFly.  You will need to do a full buildworld/buildkernel if you are running master.  Also, TCP MTU path discovery is on by default.  Also also, he’s added a SOL_SOCKET/SO_CPUINT socket option for use to reduce load in heavy network activity.  As usual, I don’t quite comprehend.

Slider, for Hammer

John Marino has created something very useful: a graphical tool for Hammer file history.  It’s called ‘Slider’, and it uses curses to work in a terminal.  It shows historic versions of files and can restore those old versions as needed.  This was already possible in Hammer, of course, but it required a sequence of commands that were not straight-forward.  I’ve been slow enough posting it that version 2.0 is already out, offering a way to see files that no longer exist, but are still in history.  (i.e. deleted some time ago)  ‘Time Machine’ sounds like the best name, but that seems to be taken.