Nvidia 440.64 comes about a month after the previous release, Nvidia 440.59, which added PRIME synchronization support for Linux kernel 5.4 LTS and later, as well as support for audio over DisplayPort Multi-Stream, and support for Nvidia High Definition Audio (HDA) controllers. This new version released today is only a small update that only introduces support for the Nvidia GeForce MX330 and Nvidia GeForce MX350 GPUs, as well as initial support for the upcoming Linux 5.6 kernel series by fixing some compilation bugs that prevented the Nvidia kernel module from building correctly.