Release is not the end, it's a start for our project. Before updating, we used spine 3.6.x for a long time. We think it's a good point to update spine before release. Now spine 3.8.x with spine-c runtime works well in our project. Actually it's not hard work to update spine editor and the runtime. The problem is spine-cpp, it makes our game crash on some low memory devices.
I also like cpp, it make work easy, lots of cpp code is in our project. but for more performance, we have to add some c code or shaders. For less memory, we have to split spine skeletons to multiple files, load them when needed and unload them when they are removed from stage, and we have to combine lots of uncorrelated spine texture to texture-sheets. And we have to think about the pixel format for every texture, RGBA8888, RGBA4444, etc1, or etc2...
What I want to say is spine-c (include ue4 and cocos2dx runtime) is value to be supported if it can work more performance or less memory usage. Of course, if spine-cpp can works better, it will be the best.
