0.12.0 release. There are a number of differences since the 0.10.0, mostly to the internals.
Notable changes since the previous stable release are as follows:
added timeout detection to avoid zombie connections
fixed bug that could leak rc file contents
added --rc option to allow an explicit rc file path to be given
added a log-formatting script
added morse code functionality with /morse and /unmorse
added an option to consider every pm as a ping (ping_on_pms)
added name count display (number of users in the channel)
changed a number of null-padded pointer arrays to be doubly linked lists, which means there is no longer any limit to the number of post_commands, aliases, names in a channel, etc.
added /swsl and /swsr commands to allow re-ordering the servers in the UI without reconnecting