csDoom v0.61 has been released which fixes a bug relating to teamplay. However, there's some more important stuff to mention here. Apparently Fly has been putting certain "hidden features" into csDoom, two of which have been found. Here's the source code for one:
This one basically bans two people from ever playing csDoom on any server which has this code compiled in. I'm not exactly sure why these 2 IPs were targeted. However, there's an even more serious one:
This basically means that Fly, the creator of csDoom, can take over any server you may choose to set up, and perform "administrative" functions (kick people, change maps, etc). Now while banning 2 IPs may be marginally all right, leaving a back door so the creator can remotely control any server is not. Doomworld urges everyone to think strongly before using csDoom 0.61 -- there's no way to know what other "hidden features" they may contain. csDoom 0.5, while being less functional, have had their source released and thus can be swept for such unwanted additions.