EternaJS Release Notes
From Eterna Wiki
Version numbers are in the format <major>.<minor>.<patch>. The major version number is incremented when a release contains revolutionary features, significant interface changes, significant code refactoring, or once cumulative minor updates amount to one of this. The minor version number is incremented when a release contains new features, notable enhancements, and significant but contained refactoring. The patch version number is incremented in releases where only bugfixes are made.
Please view the full release notes on the EternaJS Github repository releases page.