To begin with, a total of 59 new devices are supported, specifically, new PIC24 and dsPIC33 families from “EP’, “F0” ,“F1”, ”FJ”, “FV” and “EP” series. You'll also get a huge set of libraries and functions for the newly added chips, because the way we look at it, support alone isn't worth much if you have to write code from scratch.
Debugging with mikroProg™ for PIC®, dsPIC® and PIC32® is now supported for 50 newly added MCUs.
There are some slight improvements made to the IDE, flash library, and code optimizer, and many more tweaks under the hood, all those little things that add up to make your coding sessions more enjoyable and productive.
Full release changes at the Specifications tab of each compiler's webpage.