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Version 3.8.0 (2025/10/20)

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.
    • Preview Wayland support on Linux (originally written and contributed to VST SDK by PreSonus Software Ltd. and integrated in Studio One Pro 7.2 and higher on Linux):

  • VSTGUI update 4.15.0

    • new Task Concurrency API: It facilitates scheduling tasks for execution on background threads, either concurrently or sequentially. This API also enables the scheduling of tasks on the main thread from any other thread.
    • add support for custom view layouts (see IViewLayouter and CViewContainer::setViewLayouter).
    • add a grid view layouter that is similar to CSS Grid (see GridLayouter).
    • add Scripting for UIDescription (see uidescription-scripting/uiscripting.md)
    • add new text editor view (see lib/ctexteditor.h)
    • a scroll view can now have a top and a left edge view (see CScrollView::setEdgeView)
    • preliminary Wayland support on Linux.

  • Documentation

  • cmake

    • Fix SMTG_AddSMTGLibrary.cmake (macOS/Linux): Remove old symlink before creating a new one.
    • Fix SMTG_PlatformToolset.cmake for Visual Studio Compiler: __cplusplus was not assigned to correct version (pull#13).

  • Examples:

    • Add support of new ControllerNumbers enums in legacymidiccout Plug-in.
    • Add support of the new interfaces IMidiLearn2 and IMidiMapping2 in Note Expression Synth Plug-in.
    • EditorHost Wayland support.

  • Helper Classes:

    • Fix: Validator ScanParametersTest::run() - Doesn't Print Parameter Type Correctly (Issue#142).
    • Fix: validator.exe and moduleinfotool.exe Debug Version Throws Abort When Checking for Symlink (Issue#145).
    • Fix: Undefined Behavior (UB) in Validation Test Suite causes test case to fail (Issue#77).

  • VST3PluginTestHost v3.10.10:

    • Fix: potential crash at start on Windows platform (Forum).