/Applications/Spine.app/Contents/MacOS/Spine --version 3.8.99 Use code with caution.
"Where did you even find a .99 build?" Elias muttered to the empty room. Version numbers ending in .99 were usually "nightly builds"—unofficial, bleeding-edge releases meant for beta testers. They weren't supposed to be used for production. But Sarah, brilliant and chaotic as she was, had used one to fix a specific weighting bug that plagued the standard version. Spine 3.8.99 Download
To access version 3.8.99:
If you do not need physics and you are locked into an older game engine, 3.8.99 is your best friend . If you are starting a new project today, buy the latest license. /Applications/Spine
The runtimes for Spine 3.8.99 are fully mature and rigorously tested across dozens of game engines, including Unity, Unreal Engine, Godot, Defold, and Cocos2d-x. They weren't supposed to be used for production
This version represents the final stable build of the Spine 3.8 runtime family. If you are maintaining a live game that has not yet upgraded to Spine 4.0, this is likely the version you need.