The following items were fixed and/or added since VirtualBox 4.0.14:
- VRDP: fixed screen corruption
- VRDP: fixed screen freeze
- ATA: fixed a possible crash during ATAPI passthrough with certain guests
- NAT: the interface stopped working after a lot of failed ICMP requests (bug #9371)
- Metrics: fixed potential problem with invalid access in guest metrics collection upon VM destruction
- Main: fixed incorrect framebuffer information after leaving the fullscreen mode with X11 guests, this lead to a scrambled preview window in the GUI for example
- VBoxSVC: fixed crash under rare circumstances (e.g. client crash)
- VMDK/VHD: fixed a possible corruption with host cache disabled when using snapshots under rare circumstances (bug #9749)
- OVF/OVA: fixed broken disk images on import under rare circumstances
- Mac OS X hosts: fixed the problem with duplicate packets when bridged to wireless interface (bug #9648)
- Windows Additions: implemented faster detection of logged-in guest users and stale sessions
- Linux guests: fixes for Linux 3.2