I have posted a new release (9-May-2019).
The changes (taken from the update log) are:
Amount controls that have 0% in the center (Brightness and Saturation): initial mask is now black instead of gray.
Mask Separate Tool: Black and White were reversed and subsequent operations were not always working correctly.
Blend: fixed problems with 16-bit images in filter and subtractive filter blend modes.
Mask Dialog: edited All Black, All White and Invert button bitmaps to make them easier to see. Added a new All Gray button.
Paint tool: fixed problem with scripts not replaying the first application of the brush.
Bug fix release 9-May-2019
Moderator: jsachs
Bug fix release 9-May-2019
Jonathan Sachs
Digital Light & Color
Digital Light & Color