Both VirtualBox 5.1.14 and VirtualBox 5.0.32 are bugfix releases that only add various improvements to either the virtual machine manager, graphical user interface, VBoxSVC process, OVF and NVMe support, as well as platform specific changes, such as better support for the upcoming Linux 4.10 kernel for Linux hosts. The Linux Additions have been improved as well in both VirtualBox releases, fixing a protocol error that occurred during certain operations on shared folders, and it looks like the VirtualBox 5.0 series now compiles against the Linux 4.9 and Linux 2.6.28 kernels for both Linux hosts and guests.