Well, I installed Windowblinds 10.83 on Windows 7 Ultimate, and on Windows 10, v1909, and had to immediately revert back to WB 10.82.
I only use Paint Shop Pro XI (Eleven), and yes, I know it's old, but I hate all versions Corel put out after that. Many areas of PSP XI become unusable with 10.83 installed. For instance, if you go to change a color in the color settings area, the dialog that comes up is all blacked out, you cannot see anything.
As I design WB's, evidently that is totally unacceptable. RedneckDude checked out Paint Shop Pro 2018 though, and it did not have the issue.
So unless this problem can be fixed, I will not be upgrading any of my PC's to WB 10.83.