With Spotify images can be converted into a limited number of spot colors. This feature is probably only useful for a few users, but if this requirement exists then Spotify is certainly extremely helpful.
Callas pas published the recording of their webinar What’s new in pdfToolbox 11? (43’52”) on YouTube:
The most notable new feature is support for macOS 10.15 Catalina.
This new operating system brings with it some changes, the most important of which is that it no longer supports 32-bit applications.
Also, a considerable number of known issues have been fixed.