Looking at the changelog, we can notice that Linux kernel 4.7.3 comes with several improvements to the Btrfs file system, many updated drivers, in particular for things like AMDGPU, Intel i915, hwmon, I2C, iiO, IOMMU, MD, PCI, PINCTRL, s390, USB, SCSI, VFIO, Virtio, GPIO, EDAC, DAX, DMA, ACPI, CLK, and Crypto, as well as some enhancements to the ARC, ARM64 (AArch64), PA-RISC, and x86 hardware architectures. Last but not least, the networking and sound stacks have been improved as well, with support for new sound devices, as well as various changes to the mac80211 wireless framework and SunRPC protocol. If you’re using a GNU/Linux distribution powered by a kernel from the Linux 4.7 series, we recommend that you update to Linux kernel 4.7.3 as soon as possible.