http://code.google.com/p/memcached/wiki/ReleaseNotes146rc1
If no new major bugs are reported in the next day or two, I'll cut this as -final. We're looking for someone with GCC 4.6.0+ to do a build test. If you have a new enough GCC could you give this a shot and let us know how it looks? I know there're a few other patches/fixes/reports/etc people have for 1.4; I'd like to reiterate again that you should be working off of 1.6, the posted beta or the memcached/engine-pu branch on github. Thanks! -Dormando