Most modern developers should use the latest version of Spine to access features like advanced physics, separate X/Y keying, and improved performance. However, is still sought after for several specific reasons:
: Many games built between 2014 and 2016 use skeleton files (JSON or binary) exported specifically from this version. Spine 2.1.27 Download
: Create a hierarchy of bones to control 2D images. Most modern developers should use the latest version