Software Update: VirtualBox 6.1.20

Oracle has released the tenth update for VirtualBox version 6.1. VirtualBox can be used to install other operating systems in a virtual environment on a computer. In this way it is possible to use different operating systems on the same hardware side by side and at the same time. VirtualBox is available for Windows, macOS, Linux and Solaris, and is able to guest operating systems to turn. The changes made in version 6.1.20 are listed below for you:

This is a maintenance release. The following items were fixed and/or added:

  • VMM: Fixed extremely poor VM performance depending on the timing of various actions (regression in 6.1.0)
  • VMM: Fixed guest OS hanging under certain circumstances when Hyper-V is present (bug #20141)
  • VMM: Fixed Guru Meditation error when using a nested hypervisor under certain circumstances (bug #20175)
  • VMM: Fixed a SMAP related host panic affecting Solaris 11.4 systems with Intel Haswell CPUs or later (bug #16068)
  • OCI: Add cloud-init support for export to OCI and for OCI instance creation
  • GUI: Fixed “Delete all files” leaving behind Logs/VBoxUI.log (bug #20235)
  • Audio: Multiple fixes and enhancements
  • Audio: Fixed detection of duplex audio devices on macOS (5.0 regression; bug #20171)
  • Network: Fixed link status reporting for “not attached” adapters
  • Network: Fixed connectivity issues with e1000 in OS/2 guests (6.1.18 regression; bug #20148)
  • Network: Fixed VxWorks e1000 driver compatibility issue (bug #20182)
  • Network: Fixed GUI checks for port forwarding rules rejecting IPv6 with “Nat Network” (bug #14847)
  • DHCP: Don’t crash in the presence of fixed address assignments (bug #20128)
  • Serial: Fixed possible VM hang when using the a serial port in disconnected mode (bug #19854)
  • Webcam: Fixed interoperability with v4l2loopback and fixed a crash under certain circumstances (bug #20176)
  • NVMe: Fixed sporadic Windows VM hang or reboot on high CPU load
  • VBoxManage: Allow changing network adapter attachment of a saved VM with “modifyvm”
  • vboximg-mount: Fix for argument processing to honor the ‘–root’ option (6.0 regression; bug #20073)
  • Linux host and guest: Support kernel versions 5.11 (bug #20198) and 5.12
  • Linux host: Maximum MTU size increased to 16110 for host-only adapters on Linux kernels 4.10+ (bug #19122)
  • Linux Guest Additions: Fix vboxvideo module compilation for kernel version 5.10.x
  • Linux Guest Additions: Fixed kernel module build for RHEL 8.4 beta and CentOS Stream (bug #20289)

Version number 6.1.20
Release status Final
Operating systems Windows 7, Linux, macOS, Solaris, Windows 8, Windows 10
Website Oracle
Download https://www.virtualbox.org/wiki/Downloads
License type GPL