The biggest new features included in Wine 1.9.20 are the re-implementation of the clipboard API (Application Programming Interface), the implementation of message handling in the WebServices component, the addition of several new API Set libraries, and a bunch of different bug fixes. Moreover, we can notice that a total of 18 issues reported by users since Wine 1.9.19 have been addressed in the Wine 1.9.20 release, patching issues for various Windows applications, among which we can mention ComboFix, Battle.net, GOG Galaxy, Windows 10 DISM, MeterBasic, Ellisys Visual USB, and Marvelous Designer 6.