My plan for the engine has always been to release it as open source. With the current release of beta version 3, my plan is becoming a reality. However, the engine is not ready to be released into the wild yet.
I believe half-baked Open Source projects should never be released. In my opinion, an Open Source project should be released when is stable, its basic features work, its documentation is complete and support channels are ready.
My game engine has the essential features to implement a game but still crashes in certain scenarios and lacks 1/3 of the documentation. On top of that, I don't have the time to provide technical support to users and collaborators.
Therefore, I will not release the game engine as an Open Source yet. Instead, I will use the game engine as an educational resource. I plan to teach Game Development in C++ using my game engine.
So, from today to the end of the year I will work on creating game development tutorials for you to learn.