VirtualBox 5.1 Beta 3 released

Postings relating to old VirtualBox pre-releases
Oracle Corporation
Posts: 3362
Joined: 7. Jun 2007, 09:11
Primary OS: Debian Sid
VBox Version: PUEL
Guest OSses: Linux, Windows
Location: Dresden, Germany

VirtualBox 5.1 Beta 3 released

Post by frank »

Please do NOT use this VirtualBox Beta release on production machines. A VirtualBox Beta release should be considered a bleeding-edge release meant for early evaluation and testing purposes.

You can download the binaries here. Please use sha256sum to compare the hash of the downloaded package with the corresponding hash from this list.

Please do NOT open bug reports at but use our VirtualBox Beta Feedback forum to report any problems with the Beta. Please concentrate on reporting regressions since VirtualBox 5.0.22.

VirtualBox 5.1 will be a new minor release. Here is an incomplete list of changes since version 5.1 Beta 2:
  • GUI: more multi-screen full-screen issues fixed for Windows host (layout change, host-screen reattaching
  • GUI: fixing Solaris crash in VM settings dialog, see here
  • VMM: Paravirt fixes
  • VMM: fixes on Mac OS X
  • VMM: I/O-APIC fixes and improvements
  • VMM: many other fixes
  • VMM: fixes for 64-bit Solaris on 32-bit hosts
  • ACPI: fixes for passing through the battery information to the guest
  • Main: raised the initial values for RAM, VRAM and hard disk size for certain guests
  • Main: WinXP guests defaults to E1000 (PRO/1000 T Server), better performance
  • E1000: implemented interrupt throttling improving the performance under certain conditions
  • Linux hosts: fixed several Qt5 problems when using the .run packages on recent Linux distributions, see here
  • Linux installer: remove old VBox kernel modules before installing the new version
  • X11 Additions: the drag and drop service of VBoxClient was blocked for 60 seconds during shutdown, see here