Please note that this is not meant to be an exhaustive list.
In addition to the security fixes a couple of Y2K problems were also fixed.
See this SUSE Security (1999 Sep 0052) announcement and BugTraq lists (1999 Sep 0337), for additional information.
We have made a new package with version 1.2.0pre9-4 to address these issues, and we recommend to upgrade your proftpd package immediately.