Overnight the product team released SP2 for WSS v3 and MOSS 2007. After installing this service pack, SharePoint customers can benefit from performance, stability and availability improvements. IE8 is also put into level 1 support.
In addition, SP2 introduces a new stsadm operation preupgradecheck (also known as the Upgrade Checker) to check if the farm can be upgraded to SharePoint 2010. It is very important for existing SharePoint customers to go to SP2 since it “could” be one of the requirements to upgrade to SharePoint 2010. 🙂
The SP2 is a cumulative update and includes all the fixes prior to SP2 in addition to the improvements mentioned above.
Also something to note, there are no plans for an official MOSS slipstream build with SP2. An official slipstream guide will be provided so customers can create their own slipstream build based on their patch needs. WSS with SP2 slipstream builds are provided on download center.
Call to Action
Since Service Pack 2 improves performance, stability and availability for SharePoint server farm, and it is also could be a requirement to upgrade to SharePoint 2010, I encourage everyone to start planning to apply Service Pack 2 on their server farm.
KB Article Links
Description of Windows SharePoint Services 3.0 SP2 and of Windows SharePoint Services 3.0 Language Pack SP2
Description of 2007 Microsoft Office servers Service Pack 2 (SP2) and of 2007 Microsoft Office servers Language Pack Service Pack 2 (SP2)
Service Pack 2 for Windows SharePoint Services 3.0, x86 & x64
Service Pack 2 for Office SharePoint Server 2007, x86 & x64
Microsoft SharePoint Team Blog
For more information including installation steps and benefits, check out the posting on the Microsoft SharePoint Team Blog Announcing Service Pack 2 for Office SharePoint Server 2007 and Windows SharePoint Services 3.0.