A couple high profile OSS tools in the .NET space that more or less compete with Wolverine just announced plans to switch to a paid commercial licence.

As for Marten, Wolverine, and other future Critter Stack tools, the current JasperFx Software strategy remains following the “open core” model where the existing capabilities in the MIT-licensed tools (note below) remain under an OSS license and JasperFx Software focuses on services, support plans, and the forthcoming commercial CritterWatch tool for monitoring, management, and some advanced features for data privacy, multi-tenancy, and extreme scalability. While we certainly respect the other tool author's decision, we’re going to try a different path and stay down the “open core” model and Marten 8 / Wolverine 4 will be released under the MIT OSS license. I will admit that you may see some increasing reluctance to be providing as much free support through Discord as we have to users in the past though.

You can contact JasperFx at any time by dropping us an email at sales@jasperfx.net.