The October Cumulative Update (CU) for WSS 3.0 and MOSS 2007 was released on October 27th.

Every two months, Microsoft tries to release updates to the Office product line, including WSS and MOSS.  The latest release addresses various issues across the board.  Microsoft and the SharePoint product team does a good job with communicating the changes, so I have included the links to “what has been fixed” as well as a post by Joerg Sinemus detailing the installation procedure for the October CU.

 As we do with all of our clients, we encourage you to:

• Review prerequisites and changes to determine if there is any negative impact to your environment.
• Always test the CU in a development/test environment before installing on a production system.
• If the two items above succeed, proceed and always try to stay up-to-date with the latest SharePoint updates, especially with the highly anticipated SharePoint 2010 release.
• Always check the SharePoint Updates Resource Center for the latest updates. 

Links

• http://support.microsoft.com/kb/974989
• http://support.microsoft.com/kb/974988
• http://blogs.msdn.com/joerg_sinemus/archive/2008/10/29/the-october-cumulative-update-for-wss-v3-and-moss-2007.aspx