As always, when we release a new version of Snort (yesterday's 22.214.171.124 release), I need to update the EOL notices on the website for versions that are going to die soon.
So, I've went ahead and done that. https://www.snort.org/eol
126.96.36.199 will EOL on October 17, 2012
188.8.131.52 is EOL now (actually EOL'ed last month, we've just now removed it)
184.108.40.206 will EOL on August 15, 2012
220.127.116.11 is now the current minus one
18.104.22.168 is now the current version
Please see the above link for further details, and be sure and upgrade soon!