Microsoft has released Service Pack 2 for BizTalk Server 2004 (found out via Tim
Rayburn). You can find the download here,
and the list of fixes included in SP2 can be found in KB
article 924330. Many of the included fixes have been available for some time now
as hotfixes, but it’s far better to have them put together as a single supported package.
BizTalk Server 2004 SP2 Released
