WSS SP 2 has been released. WSS can now:
Support for running on 64-bit machines in 32-bit emulation mode
Support for Reverse Proxy and Alternate URL support
Support for IP Bound virtual servers
Support for off-box SSL termination
Support for SQL Server 2005
Support for ASP.NET 2.0
NOTE: Windows SharePoint Services SP2 should not be used until Microsoft Office SharePoint Portal Server 2003
Service Pack 2 (SP2) is released and installed on the computer that is running Windows SharePoint Services SP2
NOTE: If you perform Windows SharePoint Services-only deployments, you can take advantage of the new functionality without waiting for the release of SharePoint Portal Server 2003 SP2.