By migrating from BizTalk 2013 R2 to BizTalk 2020, I mean :
- Take 2013 sources
- Put them into VS 2019
- Upgrade, compile and deploy
- Test each flows
We use the 2013 SQL adapter a lot, so I'll have to modify that as well. I may have to adapt some transformations as well.
Is it possible to avoid BizTalk 2016 ?
Yes I believe you can just upgrade it by opening it in Visual Studio 2019 + the BizTalk extension and recompiling and redeploying and then testing.
You will have to regenerate the schemas for the WCF-SQL adapter and remap those.
Also check the .Net Version that is being targeted, especially in any helper classes that that don't automatically have their .Net version changed.