In order to the regular latest 2.60b Server patch http://www.splashdamage.com/content/wolfenstein-enemy-territory-barracks/ i noticed the high amout of version 2.55 running servers in the Enemy Territory community. Due the intolerable issues and bugs on servers running with this outdated 2.55 server i decided to try some reverse engineering on the baseline of the newest server version 2.60b with the goal to allow older clients to connect to a 2.60b based server version (but shown as 2.55 version in game browser).
Some notable advantages:
+ many security and bug fixes
+ less cpuload
+ more server stability and performance
How patch to 2.55+:
You need a 2.55 installation of your server
Replace the original et.x86/et.exe with the patched etded.x86/etded.exe
Pay attention to your start scripts to set the right target to etded.xxx instead of et.xxx!!!
Update: Every client version(2.55,2.56,2.60,2.60b) works fine with PunkBuster.
Important note: You need to delete the “etmain/mp_bin.pk3”, otherwise you could get a error(“Couldn’t load an official pak file”) during connection.