Release 72

Release 72: New weapon: SKS Rifle.
New Features: Friend system: if the server admin allows it (g_allow_friends, or click the button in "advanced" menu under create match) you may set other players as a friend when executing the "friend" command while looking at other player (within range). Friends may (in non-team games) enter your doors, and your turrets you build and your soliders you recruit will not attack the friend. In team games only team mates are allowed to be friended. It is mainly a feature for non team games.
New feature2: Map Torches etc are given dynamic light when the skycycles mutator is enabled (as are starburst entities) (can be disabled g_skycycles_nodynamiclight). Quake1 map entity of trap_shooter etc now supported so quake 1 maps will be more complete if played (for quake3 compiled maps use misc_fire_crossbowbolt (0-19 different emissions) as it has more options (see spikerailpath map for example).
Various other bugfixes aswell.

Forums: 

If you want to upgrade by updating things in /data/ from version 71
rather than downloading the ISO you need to update 9 packages
http://sourceforge.net/projects/xmodchaosesque/?source=directory
zzzzzz999999_xmod-chaos-esque-xonotic-full_source_and_exec_binaries.pk3

http://sourceforge.net/projects/xmodchaosesquemedia/?source=directory
redstarrepublic5.pk3
snowforest3.pk3
roundel12.pk3
nordiccastle71.pk3
kstbunkerctf64.pk3
desertofice2.pk3
expanse2.pk3
desertcastles8.pk3
(Updates to set default season for citygenerator)