Steinberg updates VST Audio Plug-ins SDK to v3.6.9

Steinberg has updated the VST Audio Plug-ins SDK to v3.6.9.

Changes:

• Reorganization of cmake files.
• VSTGUI 4.6:
  • Updated to VSTGUI 4.6.
  • Includes a new UI element: KeyboardView supporting Note expression.
• Interfaces Changes:
  • Renamed some defines:
    • PLATFORM_64 => SMTG_PLATFORM_64.
    • WINDOWS => SMTG_OS_WINDOWS.
    • MAC => SMTG_OS_MACOS.
    • LINUX => SMTG_OS_LINUX.
  • Extract Speaker Arrangement from vsttypes.h to vstspeaker.h.
  • New kNoParamId constant for uninitialized parameter id.
• Samples:
  • Fix Validator State test.
  • NoteExpressionSynth uses the new KeyboardView.
  • New HelloWorld VST3 Plug-ins (template): How to add/create your own VST 3 Plug-ins.
• Plug-in Wrappers:
  • VST 3 - AudioUnit Wrapper: fix and adaptation for newer XCode versions.
  • Audio Unit v3 (AUv3) wrapper (VST 3 - Audio Unit v3 Wrapper): some fixes, add cmake.
  • AAX wrapper (VST 3 - AAX Wrapper): add bypass and VU parameter support.
  • interappaudio: improvements, fixes, add cmake.
• Helpers Classes:
  • New Ring Buffer class (ringbuffer.h).