This is the latest release of the ixgbe driver (2.0.44.14) for Linux, which supports kernel versions up through 2.6.31. - New Support for the 82599 based X520 10GbE Dual Port KX4 Mezz - New Support for the 82599 10 Gigabit CX4 Dual Port Network Connection - New Support for the 82599 based 82599 Server Adapter X520-2 - KR to KX4/KX downshift - Multiple bug fixes