Everything has always been amazing and 1.5 goes even beyond what I have ever hoped from it so first of all, thank you VERY much!

The Advanced rename works fine but there is no way to ignore the extension. I already thought my files were lost (it is alpha so I use it at my own risk

Could there be simple checkbox 'ignore extension' or something like that, then it would work perfectly?
Also as it is so great function, it would be nice to be able to save the rename 'rules', then it could be used again for some common rename needs (especially for regexes that can be complex to rebuild). There is the history but it is separate for search and replace so named saves would be great.
And Advanced rename would be great to also be in results context menu. This is not that important as there is the keyboard shortcut but would be nice too.
And option for NOT taking the search text from selection, that way I could do same rename operation for different groups of results.
Even though 1.5 is alpha, I have found no problems (some missing display updates but nothing serious) so you do great work!
Thank you!