This release mainly adds support for connections to more comports.
On windows, you can now connect up port numbers as high as COM64 - increased from 16 before. (see this issue)
On Linux, you should be able to connect to any of ttyUSB, ttyACM, ttyAMA, rfcomm, ircomm, cuau, although I have only tested ttyACM, so it would be great if anyone can confirm if the others are working. (see this issue)
This release also includes the ability to suspend the connection to the device on Linux so that you can re-upload code without closing out of the BSP.