Amy Walsh beat David Musgrave to the punch with her coverage of additional GP 10 SP5 releases but David has full coverage in his post More Microsoft Dynamics GP 10.0 Service Pack 5 releases.
More Microsoft Dynamics GP 10.0 Service Pack 5 releases
Archived post from 2010. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.