From the Opera Forums post:
Since Mini 7 release we've received many valuable reports from you, our precious users, which helped us in preparing this update.
So what's new in this version:
- Fixed problem with broken text on web pages
- Fixed network re-connection issues
- Improved scrolling performance on S60 v3.x keypad devices
- Improved file type detection for downloads
- Opera Smart Page language will now always follow browser localization
- Various bug- and stability fixes
To download Opera Mini 7 Update 1 please visit http://m.opera.com from your phone. And don't forget to report any problems you experience using our bug report wizard. As usually please try to keep general feedback about update in this thread.
It does seem as though, like a lot of software these days, Opera Mini is in a constant state of beta, but hey, you'll be as keen as I am to be running the latest and greatest. See the links above for reporting bugs.