A new uhub release, version 0.8.0, was recently released and brings several interesting new features. 
For one thing, uhub now uses QuickJS under the hood, which allows you to write plugins in JavaScript.
Another highlight is the implementation of the “RTF0 rich text extension” for the ADC protocol. Currently, it’s only supported by QuickDC, but it’s already been discussed among the developers of DC++ and AirDC++ in recent days.
Furthermore, the !ban and !unban commands are now also applied to linked hubs. Another new feature is a function that allows users to register (!regme / !passwd) themselves on a hub.
You can find the complete changelog and the download for the latest release on GitHub.