The Office Service Pack team recently announced that Service Pack 2 for Microsoft Office SharePoint Server 2007 and Windows SharePoint Services 3.0 has been released to the Microsoft Download Center. It includes all the fixes prior to SP2, and also several enhancements to improve server farm performance, availability and stability.
The service pack install involves certain pre-installation steps and a prescribed sequence for the actual installation. Please review this process carefully before updating your environments.
Service Pack 2 for SharePoint 2007 provides many fixes and performance improvements, as well as some new features. Also with the new service pack, Internet Explorer 8 will be added into browser support matrix as level one, and Firefox 2.0 and 3.0 as level two. We recommend every customer to start planning their patch window to apply this service pack.
– Ji Lie, Microsoft SharePoint Team
Updates Resource Center for SharePoint Products and Technologies: