Serial: Fixed possible VM hang when using the a serial port in disconnected mode (bug #19854).

DHCP: Don't crash in the presence of fixed address assignments (bug #20128).

Network: Fixed GUI checks for port forwarding rules rejecting IPv6 with 'Nat Network' (bug #14847).

Mac emulator 7th guest driver#

Network: Fixed VxWorks e1000 driver compatibility issue (bug #20182).

Network: Fixed connectivity issues with e1000 in OS/2 guests (6.1.18 regression bug #20148).

Network: Fixed link status reporting for 'not attached' adapters.

Audio: Fixed detection of duplex audio devices on macOS (5.0 regression bug #20171).

GUI: Fixed 'Delete all files' leaving behind Logs/VBoxUI.log (bug #20235).

OCI: Add cloud-init support for export to OCI and for OCI instance creation.

VMM: Fixed a SMAP related host panic affecting Solaris 11.4 systems with Intel Haswell CPUs or later (bug #16068).

VMM: Fixed Guru Meditation error when using a nested hypervisor under certain circumstances (bug #20175).

VMM: Fixed guest OS hanging under certain circumstances when Hyper-V is present (bug #20141).

VMM: Fixed extremely poor VM performance depending on the timing of various actions (regression in 6.1.0).

Linux Guest Additions: Fixed issue when it was not possible to run executables from mounted share (bug #20320).

Storage: Fixed regression in LsiLogic SAS controller emulation caused VM crash (bug #20323).

GUI: Fixed regression where user was not able to save unset default shortcuts (bug #20305).

VMM: Fixed frequent crashes of 64-bit Windows Vista and Server 2003 guests when Hyper-V is used.

Mac emulator 7th guest windows 10#

VMM: Improved performance of 64-bit Windows and Solaris guests when Hyper-V is used on recent Windows 10 hosts.

EFI: Stability improvements (bug #20090).

EFI: Support network booting with the E1000 network controller emulation.

Solaris guest: Increased default memory and disk sizes.

Linux Guest Additions: Introduce support for Ubuntu specific kernels (bug #20325).

Guest Additions: Fixed crash on using shared clipboard (bug #19165).

Windows host: Fix DLL signature validation to work better with an invalid certificate.

Linux host: Installer will not attempt to build kernel modules if system already has them installed and modules versions match current version.

Linux host and guest: Introduce support for SUSE SLES/SLED 15 SP3 kernels (bug #20396).

Linux host and guest: Support kernel version 5.13 (bug #20456).

Linux host: Support Split Lock Detection feature of recent Intel CPUs (bug #20180).

Host and guest driver: Fix small memory leak (bug #20280).

Extension Pack: Fixed issues with USB webcam pass-through on Linux.

API: Fixed VM configuration for recent Windows Server versions.

Network: Fixed UDP GSO fragmentation issue with missing 8 bytes of payload at the end of the first fragment.

Network: Fixed connectivity issue with virtio-net after resuming VM with disconnected link.

Serial: Fixed a the guest missing interrupts under certain circumstances (6.0 regression, bug #18668).

Storage: Improvement to DVD medium change signaling.

Storage: Fixed starting a VM if a device is attached to a VirtIO SCSI port higher than 30 (bug #20213).

Linux Additions: Fixed mouse pointer offsetting issue for VMSVGA graphics adapter in multi-monitor VM setup (6.1.24 regression).

VBoxManage: Fixed OS detection for Ubuntu 20.10 ISO with unattended install.

VBoxHeadless: Running VM will save its state on host shutdown.

Storage: Fixed audio endianness for certain CUE sheet CD/DVD images.

VMSVGA: Fixed VM screen artifacts after restoring from saved state (bug #20067).

The following items were fixed and/or added: This page lists all changes of the VirtualBox 6.1 Downloads.