I didn't misread it Gail. I haven't upgraded DWCC from 2014 to 2015 precisely because of concerns that my WebAssist extensions will stop working - which your post has confirmed is still very likely to happen.
Even Ray describes the upgrade as a "headache" which, right now, I can live without. I'm just too busy to afford spending days trying to uninstall / reinstall extensions with no rhyme or reason as to why it is, or isn't, installing.
The whole thing is really messy and if I'd never worked with WebAssist before then I'd probably avoid it but, thankfully, I have and, reassuringly, I'm well used to them which means I'll leave it for a few months and THEN upgrade once all the creases have been ironed out.
Here's some advice though, if you're using WebAssist extensions with Dreamweaver CC....never EVER install the latest upgrade for Dreamweaver until you've spent a couple of months reading through everyone's "whinge" posts on here and have then worked out the best approach for your own install.
I've still yet to hear from anyone on here who has Windows 8.1 Pro, DWCC2014 and has upgraded to Windows 10 and DWCC2015. Until I do, I'm doing nothing with DWCC2014 (which thankfully still works on Windows 10, as do the DWCC 2014 WebAssist extensions).
If you're in the middle of a project, and everything is working fine, then just work with it. If you've 7-10 days free then go for it.