This is the most current release of the ixgbe driver for Linux, which
supports kernel versions 2.6.18 up through 4.11 It also has been tested on
the following distributions:

- RHEL 6.9
- RHEL 7.3
- SLES 11SP4
- SLES 12PS2

Changes in this release:

- VF promiscuous support for X540 and newer
- reintroduced legacy Rx code path which can be enabled at
  build time with CONFIG_IXGBE_DISABLE_PACKET_SPLIT
- 1GBase-T support for X552
- native busy poll support for kernels >= 4.11
- various other bug fixes

Note that while we attempt to keep the driver version number (5.1.3) in sync
with its counterpart in the Linux kernel that has similar functionality this
is far from authoritative. If you are using a newer kernel.org kernel or
distro it is likely that its ixgbe driver is at least as up to date as the
out of tree (OOT) driver found here.