This is a maintenance release, but there are about 20 bug fixes and usability enhancements.
The biggest fix is the file filtering code. It has been completely rewritten, and it should be all working now. You should be able to filter files either from the menus or from the Toolbar filter controls.
Previously, there have been reports of crashes, and it turned out that they were caused by damaged EXIF metadata with the user's JPEG files. This new version will trap all the crashes caused by Adobe XMP Toolkit when reading corrupted XMP metadata. In fact, it is now trapping all the crashes caused by 3rd party libraries, so it should be much more stable now.
As usual, ExifTool is updated to the latest version, version 11.23.