v0.21; 4th March, 2023.
    Support for multi-selection.
    Additional registry keys properties.
    Tooltips to various controls.
    Descriptions of some key properties.
    Deleting a key wasn't fully removing it from UL's cache.
    About window incorrectly implied there were other versions of UL available.
    Text links in About window had incorrect labels or links.
    Filtering now queries additional fields.

v0.20; 20th December, 2022.
  - Initial public release.