WSS/MOSS SP1 Released!
December 14, 2007
Finally, the long-awaited SP1 for WSS 3.0 / MOSS 2007 have been released.
You can find them at Microsoft Downloads page:
ATTENTION!
This is a major update to SharePoint which requires a careful planning (especially when you have a large farm). After the installation you must re-run a PsConfig tool again to deploy the SP.
More technical information:
Guides for planning the update: