Yan PujanteSteinberg releases VST 3.8.0, and one of the bigger change is the license which is now fully open source (MIT License)! Great news!
https://forums.steinberg.net/t/vst-3-8-0-sdk-released/1011988
VST 3.8.0 SDK Released
VST 3.8 SDK Released Dear VST Developers, Steinberg Media Technologies today releases the VST SDK 3.8 Here’s a brief overview of changes: Version 3.8.0 (2025/10/20) New licensing model for VST 3: VST 3 is now open source, released under the MIT license. Interface changes: Support for MIDI 2.0: new interfaces IMidiLearn2 and IMidiMapping2. These new interfaces replace the previous interfaces IMidiLearn and IMidiMapping. Add missing ControllerNumbers enum for MIDI 1.0 System messages...