Download pages for the second Windows Vista service pack have popped up on Microsoft's website, almost a whole month after the update reached gold status.
The update is available in two flavors: an x86 installer for 32-bit versions of Windows Vista and Windows Server 2008, and an x64 installer for x64 releases of those operating systems. The former is a 348MB download, while the latter weighs in at 577MB.
You can find out more about the new service pack by hitting the relevant TechNet information page and Microsoft's list of Notable Changes in Windows Server 2008 SP2 and Windows Vista SP2. Aside from support for new standards and miscellaneous new features, the service pack also includes all patches and hot fixes released since SP1. Microsoft points out that SP1 is a "prerequisite" for installing SP2.