Biztalk 2006 updates & SP

BizTalk Server 2006 R2 

Cumulative Update

BizTalk Server 2006 R2 Service Pack 1 CU4

Version: 3.6.2237.12 
Release date: March 30, 2012

For more information, click the following article number to view the article in the Microsoft Knowledge Base: 

2682056 Cumulative update package 4 for BizTalk Server 2006 R2 Service Pack 1

BizTalk Server 2006 R2 Service Pack 1 CU3

Version: 3.6.2224.12
Release date: August 30, 2010

For more information, click the following article number to view the article in the Microsoft Knowledge Base: 

2286501 Cumulative update package 3 for BizTalk Server 2006 R2 Service Pack 1

BizTalk Server 2006 R2 Service Pack 1 CU2

Version: 3.6.2217.12
Release date: June 24, 2010

For more information, click the following article number to view the article in the Microsoft Knowledge Base: 

2211420 Cumulative update package 2 for BizTalk Server 2006 R2 Service Pack 1

BizTalk Server 2006 R2 Service Pack 1 CU1

Version: 3.6.2210.12
Release date: April 12, 2010

For more information, click the following article number to view the article in the Microsoft Knowledge Base: 

982061 Cumulative update package 1 for BizTalk Server 2006 R2 Service Pack 1

Service Pack

BizTalk Server 2006 R2 SP1 

Version: 3.6.2149.10
Release date: January 27, 2010

For more information about the hotfixes that are included in Microsoft BizTalk Server 2006 R2 Service Pack 1, click the following article number to view the article in the Microsoft Knowledge Base:

974563 List of Microsoft BizTalk Server hotfixes that are included in BizTalk Server 2006 R2 Service Pack 1