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Minimum Host requirements for VST 3 support

VST 3 Interfaces to be implemented by a VST 3 host:

• [3.0.0] Interfaces supported by the host.
• If MIDI is supported: [3.6.12] MIDI Learn.
• [3.6.12] Host Query Interface support.
• If a plug-in implements IPluginViewContentScaleSupport, the host should follow the [3.6.6] PlugView Content Scaling requirements.