You can grab the bits from here. If you have V3 CTP1 installed, please uninstall it first or you can get your machine into a bad state.
So far my favorite two features new to this drop are both in the Integrated Scripting Editor (ISE). The first is the â€œmost recently opened files listâ€ on the File menu and second is the switch to a two pane ISE (combines the output and command panes into one). Oh yeah, there isnâ€™t much in the help system until you run Update-Help from an elevated prompt.