When upgrading to 1.4.0 hight has to be set without unit, it will be pixels.
In 1.3.0 and later there exist the instanceName short code parameter it is required if wanting to have multiple maps on one page.
When upgrading from pre 1.1.0 the search field has been made optional and default is not to show add the short code parameter includeSerach=true to get it back.
If images in plugin folder has been replaced that will change back but form version 1.2.0 it is no longer needed to replace files in plugin folder, images from the media archive can be used for location icons.
Replaced language files will be removed and has to be put back