Changes in 2.6.10 (December 1, 2019):
Brief summary :
  - CPU: Bugfixes for CPU emulation correctness (critical bugfixes for PCID, ADCX/ADOX, MOVBE, AVX/AVX-512 and VMX emulation)
  - CPU: implemented AVX-512 VBMI2/VNNI/BITALG, VAES, VPCLMULQDQ / GFNI instructions emulation
  - VMX: Implement EPT-Based Sub-Page Protection
  - CPUID: Added new CPU models Skylake-X, Cannonlake and Icelake-U
  - CPUID: Implemented side-channel attack prevention reporting and corresponding MSR registers, enabled for Icelake-U
  - Added basic support for the i440BX PCI/AGP chipset.
  - Added basic Voodoo Banshee / Voodoo3 emulation support.
  - Added basic DDC support for the VGA-compatible adapters.
  - Implemented HPET emulation (ported from Qemu).
Detailed change log :
- General
  - Disabled legacy "load32bitOShack" feature.
  - Improved NSIS win32 installer script.
- CPU / CPUDB
  - Significant speedup to simulation of milti-threaded guest (patch by Luigu.B)
  - Bugfixes for CPU emulation correctness (critical bugfixes for PCID, ADCX/ADOX, MOVBE, AVX/AVX-512 and VMX emulation)
  ! x87: implemented FOPCODE and FDP deprecation features
  ! AVX-512: implemented AVX-512 VBMI2/VNNI/BITALG instructions
  ! Crypto: Implemented VAES instructions / VPCLMULQDQ / GFNI instruction
  ! VMX: Implement EPT-Based Sub-Page Protection
  ! CPUID: Added Skylake-X CPU definition (features AVX-512 support)
  ! CPUID: Added Cannonlake CPU definition (features more AVX-512 levels, UMIP, SHA, PKU support)
  ! CPUID: Added Icelake-U CPU definition (features more AVX-512 levels, UMIP, SHA, GFNI, VAES, PKU support)
  ! CPUID: Implemented SCA (Side-Channel-Attack) Prevention reporting and corresponding MSR registers, enabled for Icelake-U CPU definition
- Bochs Debugger and Instrumentation
  - Added support for conditional breakpoints and conditional step/continue to Bochs debugger
  - Support 'info tab' command for 64-bit mode as well
  - Bochs debugger improvements patch by Doug Gale
    - better handling of 64-bit addresses in the debugger, added support for 64 bit symbols,
      added more symbol lookups.
- I/O Devices
  - PCI
    - Added basic support for the i440BX PCI/AGP chipset.
  - Timers
    - Implemented HPET emulation (ported from Qemu).
  - Hard drive / HD image
    - Added support for unlocking disk images (locks leftover from previous
      Bochs session) with the new command line argument '-unlock'.
    - Added ATAPI command "get event status notification".
    - Bugfix: undoable/volatile mode images now inherit the base image geometry
      if present.
  - Voodoo
    - Voodoo1 emulation speedup with combined PCI / memory FIFO implementation
      and multi-threading support (separate FIFO thread).
    - Voodoo2 model now working after some fixes and implementation of the
      CMDFIFO (using FIFO thread) and one of the bitBLT functions.
    - Added Voodoo Banshee / Voodoo3 emulation support (still under construction,
      but basicly usable). The AGP models are available if chipset is i440BX.
  - Display (general)
    - Added basic DDC support for Bochs VBE, Cirrus and Voodoo Banshee / Voodoo3
      adapters (reporting plug&play monitor "Bochs Screen").
  - USB
    - Now creating separate plugins for each USB device implementation.
    - Added sector size option for USB disks (size 1024 and 4096 supported).
  - Networking
    - bxhub: Added DNS service support for the server "vnet" and connected
      clients.
  - Sound
    - PC speaker now can play digitized sound by driving speaker gate.
- GUI and display libraries
  - Added new win32 gui option "traphotkeys" for fullscreen mode.
  - wx: Fixes and updates for wxWidgets 3.0 support.
  - Removed legacy guis "macos" and "svga" from display library auto-
    detection (still available using --with-XXX option).
- LGPL'd VGABIOS updated from CVS (VESA extension 'read EDID' for Bochs VBE
  and Cirrus added).
- Misc
  - Added sector size option to bximage for creating flat, sparse and growing
    mode images with big sectors (size 1024 and 4096 currently supported).