1.0.4

• Category bug fixes - This release fixes an issue where primary categories were not read back to the
  display field correctly (though they were always recorded) and
  rectifies a situation where rows would be saved to exp_category_posts
  with a category_id of 0.

1.0.3

• Fixes New Entry Submit Errors

1.0.2

• Uses the data returned by api_channel_categories->category_tree to
  determine nesting (why did I not see this before!)

1.0.1

• Fixes an issue with category group names not appearing above category groups when multiple category groups are in use.
• Adds a toggle to control display of category group names (as per the above) so you can hide them if you wish.
• Adds ability to toggle category groups by clicking on the category group name 'bar' (if visible as per the above).
• Adjusts method of storing checkbox settings, now using 1/0 instead of y/n for cleaner code. This might cause PHP errors on your edit screen. Re-save your field settings for the fields where you have used the fieldtype to fix this.
• Minor adjustments to styling of categories and nested categories to improve readability. Probably some more tweaks to come here.

Initial Release

v1.0.0

Added screenshot