Well this is the first era change in the life on many software and libraries, so while everyone knew it was coming sooner or later most software have never been

Well this is the first era change in the life on many software and libraries, so while everyone knew it was coming sooner or later most software have never been tested in "real life". I just hope no Japanese developer stored dates as "era+month+day" instead of Gregorian or epoch (or relying on a library that does).