new features: What works ?
- [FIXED in BETA2] VM attach/detach /separate - mostly works! (including multi-monitor !; WinXP guest) - but may crash on shutdown (link)
- SATA HDD hot-add/remove - mostly works. (GUI status bar quirk) (link)
- Encryption - basics work, with Ext.Pack.
- Encryption - live snapshots. work. (I need password on restore = good)
- Encryption - boot from immutable hard disk with 2 VMs. (each VM asked for password on boot = good)
- [FIXED in RC1] GUI scaling: works with limitations. link
- GUI: New User Interface settings page for customizing status-bar, menu-bar and guest-content scaling - works !
- CPU new instructions: AES-NI - works ! (tested via TrueCrypt benchmark in XP guest; 600 MB/s vs 120 MB/s)
- CPU new instructions: SSE 4.2 - works ! (tested via Stockfish 6 chess benchmark in Win7 x64 guest)
- [FIXED in BETA2] File Drag-n-Drop (to WinXP guest) - crash! (link)
- [UNREPRODUCIBLE] Paravirtualization/Hyper-V: Windows 7 Media Player crash (link)
- Telnet server / TCP socket / serial port forwarding: mostly works (with GUI has reversed meaning), in BETA2
- [FIXED in BETA3] Encryption GUI: failed to save settings without Ext.Pack (link)
- [WONTFIX] Encryption with Linked Clones doesn't allow change password (link)
- [WONTFIX] Encrypted VM export benchmarks terrible link
- [FIXED in BETA4] Encrypted VM after Full Clone, unbootable (link)
- [FIXED in BETA4] Encrypted VM Export/Import machine FAILED (link and link)
- Encryption progress bar is wrong (link)
- VM detach: --separate can be started twice (link)
- [FIXED in BETA3] SATA CD-ROM hot-add results in GUI lock-up (link)
- [FIXED in BETA4] USB hard disks not recognized by Windows 7 guest (link)
- Drag-n-Drop is blocking (link)
- Drag-n-Drop: guest->host doesn't work (Linux host) (link)
- [FIXED in RC1] Drag-n-Drop: VM crash on copy of locked file (link)
- Ubuntu scaling with 3D acceleration broken (link)
- [FIXED in RC1] GUI: "Show" button doesn't work for "detachable" VM (link)
- Drag-n-Drop: Windows <-> Windows status (fail above 200 MB) (link)
- Drag-n-Drop: KDE4 Linux guests still broken (link)
- Drag-n-Drop: VM deadlock on network share copy (Win. host) (link)
- Drag-n-Drop: Linux/GNOME guests (link)
- === What mostly works? ===
- Web camera pass-through - works (with Ext.Pack), but limited to single guest (link)
- basic export/import appliance - works.
- Video capture: works.
- network modes: host-only network, NAT, Nat Router (without PF) mostly works, Bridge, Bridge-to-Wifi, UDP tunnel, Internal modes work, and VDE (on Linux).
- 3D acceleration (WinXP guest, basic OpenGL) - works.
- [FIXED in BETA2] RHEL4 guest: GA kernel panic (link)
- [UNREPRODUCIBLE] RHEL5 guest: GA kernel compile error (link)
- [FIXED in BETA2] Shared Folders change during running VM: lock-up VirtualBox GUI. broken.
- [FIXED in BETA2] First-time wizard
- [FIXED in BETA2] SCSI DVD boot failure
- EFI: installed SUSE Linux Enterprise 12 guest on EFI/ICH9. -works.
- === Problems in General ===
- [PARTIAL FIX] VBoxSVC backend lockup on linked clone with floppy (link)
- [FIXED in RC1?] [Regression] Seamless mode unstable on Windows hosts (link)
- USB: Win7 VM crash on USB audio device detach (link)
- NAT router port forwarding has issues (link)
- users' Video Acceleration / VM boot Issue (link)
- 2D video acceleration appears broken (link)
- Ext.Pack cannot be installed on Linux/KDE hosts, due to "kdesu" problem.
- VMM: Windows 7 x64 host crash for dgmaster.sys (link)
- Audio issue (AC'97) (link)
- [FIXED in BETA4] VirtualBox lock-up on snapshot (link)
- [FIXED in RC1] Paused VM cannot Save state (link)
- VMM: openSUSE 13.2 boot failed (link)
- 3D acceleration: Aero flicker on Linux/NVIDIA hosts (link)
- USB on Solaris 11.2 hosts.
- Regression: host network connectivity loss when closing VM (link)
- === Problems with Guest Additions ===
- [Regression] Seamless mode on Windows 2000 guest broken. Worked with v4.1.6 host+guest. (link)
- [Regression] 3D: Vista guests broken. Worked with v4.1.6 host+guest. OpenGL fails too.
- [Regression] 3D: Windows 2000 guests broken. Worked with v4.1.6 host+guest.
- [FIXED in BETA3] [Regression] Xorg: openSUSE 10.3 + KDE3 (which I need) has dynamic resolution resizing broken. Works with v4.3.26 GA.
- [Regression] Shared Folder: RHEL4 has auto-mount broken. Worked in v4.1.6 GA.
- Drag-n-Drop: File DnD failed for all Debian/KDE4 guests in both directions.
- Drag-n-Drop: All RHEL/GNOME guests work only Host->Guest. Guest->Host doesn't work.
- 3D acceleration: Aero has problems (here and here)
Edit: removed the colors and weakened wording as this list is not representative