I have Enterprise license of CKFinder 3 and currently using CKFinder 3.3 with Asp.Net. .Net Framework 4.6
I upgraded from CKFinder 3.3 to 3.5.2. For this I had to changed project's targetFramework to .Net Framework 4.6.1
But after updating I see this message "This is a demo version of CKFinder 3" on the page where CKFinder is used. I didn't get this message on CKFinder 3.3 and I'm using the same license key. If I revert back to CKFinder 3.3 that message goes away.
It seems that updating from CKFinder 3.3 to 3.5 requires a new license. But on an old CKFinder forum it's written that purchasing a yearly subscription will let us update CKFinder. https://ckeditor.com/old/forums/Support/License-CkFinder
Do I need to buy a new license to use CKFinder 3.5?