Having just begun to explore your WPF offering, I am impressed.
However my extensive WPF project, already in Microsdoft Store, (and using controls from 2 other vendors) is based on .Net Core 3.1 and I expect to soon upgrade it to .Net 5. I can see how several of your controls might enhance the project measurably.
Which of your current WPF controls are compatible with one or both of these?
And which others will you be upgrading for compatibility in the next quarter or two?
What is your current support policy for such uses?