http://code.google.com/p/memcached/wiki/ReleaseNotes148rc1
Please test if you can! Since we're a few weeks behind on the schedule, I intend to run the -rc for 24, maybe 48 hours at the most instead of the usual week. Doesn't seem like anyone fetches the -rc after the first 24 hours anyway. This time you get some fancypants FEATURES like COMMANDS and SWITCHES and FIDDLYDINKS and some awesome COUNTERS for judging how well you do things. enjoy, -Dormando