Changelog for php55w-pecl-memcached-2.2.0-2.w6.x86_64.rpm :

* Thu Oct 09 2014 Andy Thompson - 2.2.0-2- Add support for libmemcached10 on < EL7
* Sun Sep 14 2014 Andy Thompson - 2.2.0-1- Import EPEL php-pecl-memcached-2.2.0-1.el7 RPM- Remove msgpack dependency