tmux (3.1~rc1-1) experimental; urgency=medium Please restart tmux entirely after upgrading to 3.1: an old server and a new client will not be fully compatible with each other and the new client may hang. Note: if necessary the old client can be used via /proc/pid/exe to talk to the old server, e.g. `/proc/$(pgrep "tmux: server")/exe attach'. -- Romain Francoise Tue, 11 Feb 2020 21:15:08 +0100 tmux (1.9-1) experimental; urgency=low The server protocol version was changed from 7 to 8, we recommend that you close any open tmux sessions before proceeding with the upgrade. -- Romain Francoise Sat, 22 Feb 2014 17:42:35 +0100 tmux (1.7~svn2819-1) experimental; urgency=low The server protocol version was changed from 6 to 7, we recommend that you close any open tmux sessions before proceeding with the upgrade. -- Romain Francoise Wed, 30 May 2012 19:52:56 +0200 tmux (1.4-7) unstable; urgency=low Starting with version 1.4-7, tmux is no longer installed setgid utmp and server sockets are no longer placed under /var/run/tmux, reverting to the default upstream behavior (sockets in a user directory under /tmp). We recommend that you close any open tmux sessions before proceeding with the upgrade. If necessary, old servers can be accessed after the upgrade with e.g. "tmux -S /var/run/tmux/tmux-`id -u`/default attach". -- Romain Francoise Sat, 16 Apr 2011 19:16:23 +0200 tmux (1.3-1) unstable; urgency=low Due to an update in the server protocol from version 5 to version 6 users need to terminate open tmux sessions before proceeding with updating tmux 1.2 or older. -- Karl Ferdinand Ebert Fri, 23 Jul 2010 08:09:03 +0200