Microsoft released the RC build 6002.16670.090130 of Service Pack 2 for Windows Vista and Windows Server 2008 to Microsoft Connect testers. The company is letting testers grab it via Windows Update (in 48 hours, all languages), as a standalone installer package, or as a slipstreamed version in English, Spanish, German, French, Japanese. The public beta release is not yet available Microsoft is recommending for the average customer to "wait until the final release prior to installing this service pack" and for testers to remember that "a Service Pack is not a feature release—we are not looking for new feature suggestions, only SP2 regressions, Crashes, and confirmation of fixes we've made will be considered for this milestone."

Source:→ Ars Technica