Utilities was completely rewritten. Code was refactored and reused. Added kind of a GUI framework for menus, selectors, inputs, etc.
This results in less lines of code to do the same thing that was done before. The binary size is now also much smaller (under 140 KB).
Stability of the add-in, namely in the file manager and on the calendar events and tasks sections, has increased by two or three orders of magnitude.
User experience should overall be the same, but with some more bells and whistles here and there.
Since this was built from scratch in three weeks, some of the bells and whistles that existed before may be missing, as of yet.
Oh, and timers and stopwatches have been unified in a single UI. Now one has 20 chronometers that can be upwards or downwards. I think the UI has improved a lot in this area.
Some things still need to be fixed and added before Beta 9, namely a way to migrate from older versions of the add-in (hint: the @CALNDAR folder is now @UTILS, and Hash.plp is no longer compatible, so delete it before locking the calculator).