Added more notes

Author: mkoppanen

package.xml

@@ -38,6 +38,7 @@ http://pear.php.net/dtd/package-2.0.xsd">
 - Fixes GH #54: Fixed UDP server adding with newer libmemcached
 - Fixed PHP bug #65334: (Segfault if uncompress value failed)
 - Fixes GH #14: get with cas token fails to fetch all results
+- Fixes GH #68: memcached 2.1.0 requires libmemcached 1.0.10
 - Fixes GH #69: compiling on CentOS 6.4 with libmemcached 1.0.17
 - Merged PR #91: More granular session locking support
 - Added session handler settings: