This is a maintenance release. The following items were fixed and/or added:
VMM: Fixed issue when Windows 11 24H2 guest was experiencing BSOD in rare conditions
GUI: Improved representation of disabled preferences contents (mask+font) when it is shown with certain Linux themes
GUI: Fixed issue when seamless mode was not properly enabled or disabled in appropriate time according to GA status events
GUI: Fixed rare crash on macOS hosts on application exit
GUI: Fixed small 7.1.4 regression in preferences windows when filter editor was not in focus
GUI: Introduced improvements in Advanced properties/settings dialog area
GUI: Restored missing functionality to change bridged adapter at VM startup if current one wasn't found
GUI: Fixed issue when Show action duplicates were created on macOS host in attempt to switch between running and powered off VMs
GUI: Fixed regression when 3D acceleration check-box was not available for certain guest OS and graphical controller types
GUI: Restored lost Help button for preferences windows on macOS
GUI: Restored lost Help button shortcuts for certain windows
GUI: Fixed issue when error message was shown when VM was starting in full-screen mode
VirtioNet: Fixed issue with re-negotiation of features after reset
Graphics: Fixed issue with Linux guest screen flickering when guest was using VMSVGA graphics adapter
VBoxManage: Added the ability to export and import VMs which contain an NVMe storage controller
VBoxManage: Fixed issue when it was not possible to set graphics controller to "QemuRamFB" using modifyvm command (bug #22232)
Main: Fixed issue when specifying custom proxy server in GUI settings had no effect
Network: Added changes which replaced NAT engines with libslirp
Guest OSes: Added OS type for Windows Server 2025
Linux guest and host: Added more fixes for UBSAN related warnings (bug #21877)
Linux guest and host: Added initial support for RHEL 9.6 kernel
Windows guests and host: Re-implemented driver installation
Solaris host: Removed the VirtualBox GUI shared objects libqgtk2styleVBox.so and libqgtk2VBox.so from the Solaris installation packages as they depend on GTK2 which is EOL and no longer supported
Linux Guest Additions: Introduced initial support for kernel 6.13
Linux Guest Additions: vboxvideo: Added improvement for kernel 6.4 support and fixed issue when graphics could be frozen when using VBoxVGA adapter
Linux Guest Additions: Introduced additional fixes for kernel 6.12 in vboxvideo
Oracle VirtualBox 7.1.6 
