• Improvement: Added error message when trying to batch convert a JPG sequence to DNG (which won't work).
  
• Improvement: When checking for different file extensions in a sequence, the extensions will now be treated case insensitively and JPG/JPEG and TIF/TIFF won't be differentiated anymore.
  
• Improvement: Ignore Mac OS .DS_Store files when overwriting intermediary folders by internal export.
  
• Improvement: Filter Mode: Changed the curves to always draw in dot+connections mode when filtering, this will make them better usable for long sequences with many short term changes in the curve. There will be transparency making it easier to see the preview behind the curves.
  
• Improvement: Introduced a bit of transparency on the solid curves.
  
• Fix: Deleting the selected image would not update the Editor in Visual Previews mode to the new image selected after the deletion.
  
• Fix: Image slider maximum would not be updated when filtering images.
  
• Fix: When clicking on another image while loading a sequence, the load progress could sometimes stall.
  

Please let me know, if you find anything. If everything is ok with this beta, I plan to release 6.5.3 final next week.