The next cumulative update is available. It now needs to install SP1 before you install post SP1 updates. See also http://blogs.technet.com/b/stefan_gossner/archive/2012/07/11/is-sp1-installed-on-your-sharepoint-2010-farm.aspx
2687566 The full server package for Microsoft SharePoint Foundation 2010
2687564 The full server package for SharePoint Server 2010 and contains also the MSF2010 fixes so you need only this one package.
The KB article might have a delay to be public.
Important for all Server Applications listed above:
After applying the preceding updates, run the SharePoint Products and Technologies Configuration Wizard or “psconfig –cmd upgrade –inplace b2b -wait” in command line. This needs to be done on all servers in the farm with SharePoint installed. You can run psconfig in parallel on all SharePoint machines.