V 1.1.6 (2021-03-03) - Bugfix: during a firmware update the individual device serial number is now always taken over (occasionally during a firmware upgrade the serial number was reset to a universal factory setting) V 1.1.5 (2020-09-11) - "Modbus" setting for "RS-485 Protocol" has been activated - Further minor software optimizations and bugfixes V 1.1.4 (2020-08-18) - Settings for SDI-12 interface added - Further minor software optimizations and bugfixes V 1.0.7 ... V 1.1.3 - OTT internal versions; not published V 1.0.6 (2018-11-23) - Initial version (V 1.0.0 ... V 1.0.5 -> interal version for R&D and device testing).