Will Compiled FlexViewer Version 3.1 web apps work on ArcGIS Server 10.2?

Hi,
We are researching if we can go to ArcGIS Server 10.2 and our compiled FlexViewer version 3.1 apps will still work?
We currently have ArcGIS Server 10.1, SQL 2008 R2, on a Windows Server 2008 R2 standard with IIS7.

I have every intention of going straight to compiled FlexViewer version 3.6 as soon as things settle down after the upgrade.
Thanks,
Janie