I know this probably shows I'm a bit of an old fart but I have gotten rather used to Jade's non-standard Shift+F3 instead of Ctrl+F for opening the find dialog. This means that I'm finding the 6.3.06 behaviour of using Ctrl+F hard to get used to, especially given that the F3, Ctrl+F3 and Ctrl+Shift+F3 functionality remains unchanged.
The good news for me, and maybe also good news for any others of you out there who are also used to using Shift+F3 for Find, is that you can use the keyboard bindings in your Jade User Preferences to reinstate the Shift+F3 sequence.
Cheers,
BeeJay.