VirtualBoxé um software de virtualização gratuito e de código aberto que permite aos usuários criar e executar máquinas virtuais em seus computadores. Com o VirtualBox, os usuários podem instalar e executar vários sistemas operacionais simultaneamente em seu computador sem ter que criar partições separadas ou comprar hardware adicional.

Uma das principais vantagens do VirtualBox é a sua facilidade de uso. É simples de instalar e configurar, mesmo para aqueles que têm pouca ou nenhuma experiência com tecnologia de virtualização. O VirtualBox também oferece uma ampla gama de opções de personalização, incluindo a capacidade de ajustar a quantidade de RAM, núcleos de CPU e espaço de disco rígido alocado para cada máquina virtual.

Outra grande característica do VirtualBox é sua compatibilidade com uma ampla gama de sistemas operacionais. Os usuários podem instalar e executar Windows, Linux, macOS e muitos outros sistemas operacionais em suas máquinas virtuais. Isso faz dele uma excelente ferramenta para desenvolvedores, testadores de software e qualquer pessoa que precise executar múltiplos sistemas operacionais em um único computador.

O VirtualBox também oferece uma gama de recursos avançados, como suporte para dispositivos USB, pastas compartilhadas e adaptadores de rede. Esses recursos tornam possível executar software que requer recursos de hardware ou rede, como roteadores virtuais, firewalls e servidores.

VirtualBox é uma excelente escolha para quem precisa executar vários sistemas operacionais em um único computador. Sua facilidade de uso, ampla gama de opções de personalização e compatibilidade com muitos sistemas operacionais diferentes o tornam uma ferramenta versátil e poderosa para desenvolvedores, profissionais de TI e usuários domésticos.

Recurso Principal:

• Compatibilidade entre plataformas.
• Interface gráfica de usuário intuitiva.
• Suporte para vários sistemas operacionais.
• Integração perfeita com o sistema operacional host.
• Snapshots e clones.
• Capacidades de rede.
• Suporte a dispositivo virtual.
• Pacotes de extensão para funcionalidade adicional.

• VMM: fix for a bug in the Local APIC emulation causing a BSOD when booting certain guests (4.3.0 regression; bug #12240)
• VMM: fixed loading of saved states if VT-x/AMD-V was disabled (4.3.2 regression; bug #12291)
• VMM: fixed single-stepping inside the guest for certain instructions (VT-x only; bug #10947)
• VMM: fixed a performance issue involving APIC accesses after rebooting a VM (4.3.0 regression; VT-x only; bug #12296)
• VMM: fixed TPR patching to be enabled for 32-bit guests even when the chosen guest type is 64-bit (4.3.0 regression; AMD-V only)
• VMM: fixed occasional VINF_EM_TRIPLE_FAULT errors on hosts without the unrestricted guest execution feature (bug #12198)
• GUI: don't bother the user with the BPP warning if no Guest Additions are installed
• GUI: fixed machine-window paint artifacts on VM reboot / guest-screen resize
• GUI: make sure the assigned license and description are attached to the exported appliance
• GUI: fixed bugs in close VM action restrictions handling (bug #12333)
• GUI: fixed incorrect wizards text colors for some unusual look and feel styles (bug #11743)
• GUI: should restore seamless mode as soon as possible after VM reboot or shutdown
• GUI: fixes for medium enumeration
• GUI: the OS X hot corners were not accessible while a VirtualBox VM is running (Mac OS X hosts only; bug #4139)
• GUI: fixed an old bug which bared the host from cleanly shutdown / reboot if the VM selector window is open (Mac OS X hosts only; bug #8254)
• Host-only Networking: fixed creating of host-only network interfaces (4.3.0 regression; bug #12182)
• NAT: don't run into an infinite loop in case the host cannot access any DNS server (4.3.0 regression; bug #12300)
• NAT: don't re-connect the cable if the DNS information changes and the cable was disconnected before (4.3.0 regression; bug #12225)
• NAT: fixed several issues with automatically starting / terminating of NAT networks on VM start / stop and configuration changes
• VBoxNetDHCP: don't block prevent VBoxSVC from terminating (bug #12264)
• 2D Video acceleration: fix crashes on presentation mode switches (bug #9194)
• BusLogic: allow to run VMs with more than one BusLogic SCSI controller enabled
• Keyboard: fixed a VM crash if a VM was resumed from a saved state where at least one key was pressed (bug #11289)
• VBoxSVC: fixed a heap corruption under certain conditions (4.3.0 regression)
• VBoxSVC: fixed a race leading to a hang during initialization (bug #12349)
• OVF: fixed import logic for OVF appliances containing multiple VMs
• OVF: improved logic for finding an appropriate image format during OVF import
• API: block the removal of the current snapshot if it has child snapshots (only relevant for VMs without snapshottable hard disks, their presence always prevented removal), which resulted in VM configuration corruption
• API: mark VM configurations with snapshots but without current snapshot as inaccessible, as this combination is nonsense
• API: fixed information for some automatically generated events (only with XPCOM, Windows host was not affected), which caused errors when getting some of the attributes over the webservice (bug #12379)
• SDK: extended the functionality coverage for the C bindings
• Guest Control: various bug fixes and improved VBoxManage help (bugs #8072, #11044, #12336, #12338, #12346, #12371)
• Windows hosts: another attempt to fix the massive DPC latency (bug #6242)
• Windows host installer: make registering file extensions optional, contributed by Tal Aloni (bug #8009)
• Mac OS X hosts: properly sign the kernel extensions for Mavericks hosts (bug #12256)
• Mac OS X hosts: fixed a bug where the VirtualBox dock icon was not properly removed from the dock after a VM terminated preventing Mavericks hosts from shutting down (bug #12241)
• Mac OS X hosts: fixed minor installer issue (bug #12275)
• Linux hosts / guests: Linux 3.13 compile fixes (bug #12358)
• Linux guests: build the vboxvideo kernel module correctly on OL/RHEL 6.1 guests (bug #11996)
• Linux guests: make 3D work on Slackware 14.1 (bug #12320 comments 3 and 4)
• Guest Additions/3D: fixed an occasional dead-lock (bug #12319)
• Windows Additions/3D: fixed possible memory leaking (bug #12228)
• Windows Additions/XPDM: use separate tables containing valid video modes for each virtual monitor
• Windows Additions: fixed automatic logins for Vista and newer Windows guests (bug #12332)