Bluetooth 4.0 (LE) support for Bootcamp

No it doesn't. Apple drivers works with the MS stack and provide some limited functionality. Under bootcamp with the drivers provided by Apple you will get some basic funcionality for HID devices and simple file transfer. Advanced protocols like AD2P, OBEX, Audio profiles, etc are not supported either is BT LE nor BT 3.0 HS. We will be lucky if Broadcom adds support for our BT cards in the next update of the Widcomm stack.

PS: if you want to use some BT profiles like A2DP in Bootcamp, I have updated a guideline here:

https://discussions.apple.com/thread/3755904

Hope it helps,

It does not support but in bootcamp you will get some idea about HID devices with simple file transfer.