First select your product and then the connected inverter.

Release Notes:

Release Notes Solar-Log200/500/1000& Solar-Log 250, 300, 1200 and 2000
update: Jan. 28, 2016 - Solar-Log™ 3.4.2 Build 79

ReleaseNotes Solar-Log 100e/400e (TXT)

ReleaseNotes Solar-Log 200/500/800e/1000  (PDF) update: Jan. 27, 2014

ReleaseNotes Solar-Log 300/1200/2000 (PDF) update: Jan. 15, 2014

Solar-Log™ WEB „Commercial Edition“: Software Updates

Release Notes - Solar-Log™ WEB 2.8.0 – Dec. 08, 2015