NVIDIA has released its new R340 series of drivers, where it starts with the GeForce 340.43 beta drivers. The new R340 series doesn't introduce much in the way of new, with it being an iteration release with minor features, something we'll quickly jump into now.
We have x86 Miracast support, which is probably the standout feature of the new R340 series of driver. Until now, NVIDIA only supported Miracast through its Tegra 3 and later SoCs, but now it works on GeForce products running Windows 8.1. NVIDIA's new GeForce 340.43 beta drivers are also Game Ready for GRID: Autosport and the Battlefield: Hardline beta.
For older GeForce owners, beware: the R340 series will be the last driver series to support NVIDIA's Direct3D 10 generation GPUs - with the 8/9/100/200 and 300 series all not receiving support after the R343 series later this year. These GPUs will be shifted over to legacy status. Go and grab the new NVIDIA GeForce 340.43 beta drivers here.