Hello. I've finished setting up YUM repositories for TOMOYO 1.7 . You can download ccs.repo from http://tomoyo.sourceforge.jp/repos-1.7/$distribution/ (please see http://tomoyo.sourceforge.jp/repos-1.7/ for available $distribution) and save into /etc/yum.repos.d/ directory. (If you already have /etc/yum.repos.d/ccs.repo , just rewriting from http://tomoyo.sourceforge.jp/repos/ to http://tomoyo.sourceforge.jp/repos-1.7/ is sufficient.) PGP key is available at http://pgp.nic.ad.jp/pks/lookup?op=get&search=0x4B975A98 . You can add the downloaded key using "rpm --import". pub 1024D/4B975A98 2008-07-29 [expires: 2010-07-29] Key fingerprint = C6F6 6C64 B3D9 EA85 E89A A98A 503A DA38 4B97 5A98 uid Tetsuo Handa <pengu****@I-lov*****> Please note that the policy files developed for TOMOYO 1.6 cannot be used for TOMOYO 1.7 because the location to check permissions and the granularity of permissions are different between TOMOYO 1.6 and TOMOYO 1.7 . Please rename or delete /etc/ccs/ directory used by TOMOYO 1.6 before installing TOMOYO 1.7 . I continue support for TOMOYO 1.6 . Thus, you don't need to migrate to TOMOYO 1.7 immediately. But new features/functionalities will no longer be added to TOMOYO 1.6 . I recommend you to use TOMOYO 1.7 if you install TOMOYO into new systems. Regards.