To make this clear, cssu-testing already contains the security update that shipps with 21.2011.381(PR 1.3.1). So if you already have cssu there is no need to upgrade! Also about stable, stable is about to come out as soon as the repository is ready. Stable will also include the PR 1.3.1 fixes and can be intstalled from stock PR 1.3 or stock PR1.3.1 but not from cssu-testing. edit: yes you don't see the maemo5 update because of cssu, which is intended behaviour because installing a new pr on top of cssu can/will break parts of the system.