Starting CiviCRM 5.0, it's not required to set compatibility for each 5.x version. You should set only the minimum 5.x version supported.
Because of the numerous versions, it looks a bit weird on civicrm.org, giving the impression that development has stalled or that it does not support the latest 5.x:
More information here: https://docs.civicrm.org/dev/en/latest/extensions/info-xml/#ver