Spine 3.8.99 |link| Jun 2026
The built-in examples often do not open or install correctly in 3.8.99 if you have newer versions of Spine installed, as the software expects them in specific local folders that may have been moved.
: To move a project from a higher version back to 3.8.99, you must export it as a JSON from the higher version and then import it into 3.8.99 using the Command Line Interface (CLI) or the Import tool [12, 16]. Spine 3.8.99
If version numbers were a map, 3.8.99 is the last stop before we cross the border into the brand-new territory of Spine 4.0. This release serves as a definitive checkpoint for the 3.8 era, locking in stability, squashing long-standing bugs, and ensuring your current projects are running smoother than ever. The built-in examples often do not open or
