Diff Utils library is an OpenSource library for performing the comparison / diff operations between texts or some kind of data: computing diffs, applying patches, generating unified diffs or parsing them, generating diff output for easy future displaying (like side-by-side view) and so on.
Full Changelog: https://github.com/java-diff-utils/java-diff-utils/compare/java-diff-utils-parent-4.11...java-diff-utils-parent-4.12