Last Rebel version to support sse?

Hello,

 Is Rebel 15.1 the last one that supports SSE?

 How can I make sure that I have the 15.1a version rather than 15.1?

Thank you for your time,

Yes, last SSE version.

From the page - http://www.rebel13.nl/windows/rebel-15.html

Download the version on the bottom with the description : Rebel with Noomen Book

And from the engine folder use - Rebel-15.1a-sse.exe