List of Major updates to SharePoint 2007 till date

I cam across this very important list of all major updates to SharePoint 2007 till date. This is a great little resource to keep track of the updates and check if your current SharePoint Installation is up to date (Fron the Version Number). Mind you, some of the updates are only necessary if you are facing some issues and this are covered in the update. As I always recommend test your updates before deploying them on your production. I am presently documenting a best practice approach on how to patchup SharePoint for a client.

Name	Description and Microsoft.SharePoint.portal.dll version number
Office SharePoint Server 2007	The RTM version of Office SharePoint Server. Microsoft.SharePoint.portal.dll version number: 12.0. 4518.1016
October public update (2007)	For more information about the software updates in the October public update, see Microsoft Knowledge Base article 937832: Description of the security update for SharePoint Server 2007: October 9, 2007 (http://go.microsoft.com/fwlink/?LinkId=102083&clcid=0×409). Microsoft.SharePoint.portal.dll version number: 12.0. 6036.5000
Service Pack 1	Service Pack 1 (SP1) includes a number of hot fixes across Office SharePoint Server 2007 and Windows SharePoint Services 3.0, new Stsadm commands for repartitioning databases and renaming host site collections, and updates to product documentation that address performance and capacity planning concerns. For more information about what this service pack contains, read the introductory white paper, Service Pack 1 for Windows SharePoint Services 3.0 and Microsoft Office SharePoint Server 2007 (http://go.microsoft.com/fwlink/?LinkId=105704&clcid=0×409). Microsoft.SharePoint.portal.dll version number: 12.0.6219.1000
Post Service Pack 1 rollup	This rollup provides fixes that were made after the code was locked for SP1. For more information, see the following KB article, Description of the SharePoint Server 2007 post-2007 Microsoft Office servers Service Pack 1 hotfix package: July 23, 2008 (http://support.microsoft.com/kb/955586). Microsoft.SharePoint.portal.dll version number: 12.0. 6300.5000
Infrastructure Update (IU)	This update fixes issues in Office SharePoint Server 2007 and adds new Enterprise Search features to SharePoint Server 2007. For more information, see Description of the Microsoft Office Servers Infrastructure Update (http://go.microsoft.com/fwlink/?LinkID=121886&clcid=0×419) and Issues that are fixed in Microsoft Office Servers by the Microsoft Office Servers Infrastructure Update (http://go.microsoft.com/fwlink/?LinkId=133369&clcid=0×409). Microsoft.SharePoint.portal.dll version number: 12.0.6320.5000
August Cumulative Update	For more information about this update, refer to the following KB articles, Cumulative update packages for the 2007 Microsoft Office core suite applications and for 2007 Microsoft Office servers (http://go.microsoft.com/fwlink/?LinkId=133370&clcid=0×409) and Description of the SharePoint Server 2007 hotfix package (Coreserver.msp): August 26, 2008 (http://go.microsoft.com/fwlink/?LinkId=133371&clcid=0×409). Microsoft.SharePoint.portal.dll version number: 12.0.6327.5000
October Cumulative Update	To learn about the issues that are fixed in this update, see Description of the SharePoint Server 2007 hotfix package (Coreserver.msp): October 28, 2008 (http://go.microsoft.com/fwlink/?LinkId=133374&clcid=0×409), Description of the SharePoint Server 2007 hotfix package (Coreservermui.msp): October 28, 2008 (http://go.microsoft.com/fwlink/?LinkId=133376&clcid=0×409), and Description of the SharePoint Server 2007 hotfix package (Dlc.msp): October 28, 2008 (http://go.microsoft.com/fwlink/?LinkId=135715&clcid=0×409). Microsoft.SharePoint.portal.dll version number: 12.0.6331.5000
December Cumulative Update	This update contains hotfixes for all the Office SharePoint Server 2007 issues that have been fixed since the release of Office SharePoint Server 2007. For more information, see Description of the SharePoint Server 2007 cumulative update package (MOSS server-package): December 16, 2008 (http://go.microsoft.com/fwlink/?LinkId=139508). Microsoft.SharePoint.portal.dll version number: 12.0.6335.5000 This update contains: ·         Coreserver-x-none.msp ·         Coreservermui-en-us.msp (and all the other languages for the product) ·         Dlc-x-none.msp ·         Dlcmui-en-us.msp (and all the other languages for the product) ·         Ifswfe-x-none.msp ·         Lpsrvwfe-x-none.msp ·         Msxml5s-x-none.msp ·         Pjsrvapp-x-none.msp ·         Pjsrvwfe-x-none.msp ·         Xlsrvapp-x-none.msp

For the complete article, refer to http://technet.microsoft.com/en-us/library/cc263467.aspx

[Update: 28th August 2009]

Find the list of recent cummulative updates and version numbers on the SharePoint Admin Wiki. http://sharepointadminwiki.com/display/SharePointAdministrationWiki/SharePoint+Versions 

Please make sure you test run the updates on a dev/stagging server before applying them on PROD.