As always:

yum --enablerepo=remi install libmemcached

This library is required by the new memcached PECL extension (an alternative to memcache) in active development phase.

As this new version breaks ABI (with previous 0.43), I don't plan any update in the fedora ≤ 14 repository.

In this new build, the client can use SASL. (fedora ≥ 11 only)

No RPM for EL or older fedora, because a patch can't be applied with old libtool, autoconf and automake versions.