With 6.0.5RC1 I am unable to add my current license, what changed?

When I try to load the same license file that worked for me in 6.0.4 in 6.0.5 RC1 I am getting the following error:



The file I am selecting is "CLM_Practitioner_Unlocked.jar" but the error message is implying I need a file with a different file extension.  At the moment the RC1 install provides a 'Trial' license that will expire at the end of this year - but does anyone know of the permanent solution for 6.0.5 licenses?

Thanks!