RF 7.0.1 is the first and the only planned bug fix release in the RF 7.0.x series. It fixes all reported regressions as well as some issues affecting also earlier versions. The only bigger enhancement it contains is the new Japanese localization.
Two of the fixes are unfortunately backwards incompatible compared to RF 7.0. Both of them basically revert bad design decisions and change the behavior back to what it was in earlier versions. For more information about these changes and everything else that has been fixed, see the release notes. 
Big thanks for the Robot Framework Foundation for the continued support. Thanks also for everyone who has contributed code, reported problems, debugged issues, or otherwise helped with Robot Framework 7.0.1 development.