4.0.0diff_match_patchdiff_match_patchcurrentGoogleDiffMatchPatchhttp://code.google.com/p/google-diff-match-patchThe Diff Match and Patch libraries offer robust algorithms to perform the operations required for synchronizing plain text. Googlehttp://www.google.comApache 2.0http://www.apache.org/licenses/LICENSE-2.0.html