Upgrade notices

to 3.x

replaced ListGoogleMapBeforeRenderEvent with GoogleMapsPrepareExternalItemEvent
replaced ReaderGoogleMapBeforeRenderEvent with GoogleMapsPrepareExternalItemEvent

to 2.1

Remove heimrichhannot/contao-google-maps-list-bundle dependency
Update your list configs to don't use HeimrichHannot\GoogleMapsListBundle\DefaultList and HeimrichHannot\GoogleMapsListBundle\DefaultItem anymore

1.x to 2.x

Renamed Bundle class from HeimrichHannotContaoGoogleMapsBundle to HeimrichHannotGoogleMapsBundle. You may need to update loadAfter setup, twig paths and file paths (public folder)
DlhMigrationModifyMapEvent: legacyMap parameter is now type stdClass instead of Model
DlhMigrationModifyOverlayEvent: legacyOverlay and legacyMap parameters are now type stdClass instead of Model
Templates:
- gmap_map template: mapGoogleJs variable removed. Update your custom templates accordingly
List bundle:
- refactored list config type to GoogleMapConfigElementType
- added templateVariable field support
Reader bundle:
- refactored reader config type to GoogleMapConfigElementType
- added templateVariable field support