You can choose between the "Proprietary Steinberg VST 3" or the "Open-source GPLv3" license (dual-license) depending on how you want to distribute your VST 3 plug-in/host (License Agreement included!).
"Proprietary Steinberg VST 3" license
The "Proprietary Steinberg VST 3" license allows you to distribute your VST 3 plug-in/host in a binary form. However, please note the following requirements:
- You need written permission from Steinberg Media Technologies GmbH in order to distribute your VST 3 plug-in/host (Steinberg will send you the countersigned License agreement included in the SDK that you signed and sent to us).
- You need to mention Steinberg Media Technologies GmbH in the about box and/or documentation of your VST 3 plug-in/host and follow the Steinberg VST usage guidelines.
For more details please read the "Proprietary Steinberg VST 3" license agreement. If you accept it, please enter all required information, sign it and send it back to us, either via land mail (to the Steinberg address mentioned in the license), or via e-mail (email@example.com) or via fax (+49 (0)40 210 35-300). We will countersign the license agreement and send it back to you.
- as PDF : The License agreement is part of the VST SDK package too:
"Open-source GPLv3" license
The open-source license lets you share the source code of your VST 3 plug-in/host including the VST 3 SDK's sources which are subject to the GPLv3.
For more information about GPLv3 check this link. It also permits you to change and modify the VST 3 SDK's sources as long as you share your changes and make them available for everyone (e.g. on an Internet hosting service like GitHub). Note that you have to follow the Steinberg VST usage guidelines.
Steinberg Dual-License file
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