5 Libmemcached is layed out by interface version. The 1.0 version would be found in:
6 libmemcached-1.0/memcached.h
8 The historic libmemcached/memcached.h includes libmemcached-1.0/memcached.h. For best practice you should include the version of libmemcacached that you used during development.