VST 3.8.0 SDK Released

DeveloperVST 3 SDK
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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 theMIT license.

  • Interface changes:

    • Support forMIDI 2.0: new interfacesIMidiLearn2 andIMidiMapping2. These new interfaces replace the previous interfacesIMidiLearn andIMidiMapping.
    • Add missing ControllerNumbers enum forMIDI 1.0 System messages.
    • PreviewWayland support on Linux (originally written and contributed to VST SDK by PreSonus Software Ltd. and integrated inStudio One Pro 7.2 and higher on Linux):

  • VSTGUI update4.15.0

    • 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](https://wayland.freedesktop.org/) support on Linux.

  • Documentation

  • cmake

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

  • Examples:

    • Add support of new ControllerNumbers enums inlegacymidiccout Plug-in.
    • Add support of the new interfacesIMidiLearn2 andIMidiMapping2 inNote Expression Synth Plug-in.
    • EditorHostWayland 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).

The SDK can be downloaded here:

steinberg.net

3rd-Party Developers Support & SDKs

We offer other manufacturers the chance to develop VST- and ASIO-based software and hardware for macOS and Windows by offering those technologies.

github.com

Online documentation available under:
VST - VST 3 Developer Portal (steinbergmedia.github.io)

Main VST page:vstdev.org

Your Steinberg Team

24 Likes
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Congratulations! Great to see both MIDI 2.0and the new MIT license together!

Pete
Microsoft

4 Likes
4

Great news!

FYI the SSL cert forhttps://vstdev.org/ doesn’t seem to be correct.

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I assume it is correct. The domainvstdev.org just forwards toVSTDev (ongithub.io) where the website resides. Is your browser complaining about that?

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Thank you for the release and thank you for changing the Licensing. That is a monumental change!

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7

it’s working now. not sure what was wrong earlier. thanks!

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Wow, this is huge!! Not just the MIT license, not just MIDI 2.0, butWayland support as well?! This Linux nerd isvery happy. Thank you all!!

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9

Great news!!:slight_smile:

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10

Even though I don’t build plugins myself, it’s great to know this could open the door for more creative and community-driven stuff to come out of it.

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11

Just wanted to say thank you for the licensing change, this is awesome!:slight_smile:

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