We are moving to BTS 2010 and I would like to know if I can simply redeploy our 2009 apps onto 2010?
I have tried finding this information out on the web and I have found anecdotal evidence of people saying the 2009 apps run on 2010 but nothing from Microsoft on the issue.
Microsoft released this document here about the in-place upgrade path, but this does not mention apps at all. Additionally we are not looking to do an in-place upgrade but to build a completely new environment for 2010 and then switch it over.
Has anyone tried this?
Yes, certainly it works - we've installed MSI's generated off our BizTalk 2009 / VS 2008 environments directly onto BTS 2010, including retention of the 2009 binding files. The BTS 2010 environment was a multi-server clean install.
In fact, many of our incumbent, stable BTS 2009 apps are still running on our BTS 2010 prod servers - we haven't bothered to rebuild them.