15 April 2024:
 - Localization: currently in English & German
 - self-registration enabled
 - private comments to specific peers enabled
31 January 2024:
 - more flexibility in peer grading process
 - decoupling of setting up a peer grading campaign from carrying out a campaign
 - flexible campaign start and end
 - imported peer grading participants' data can be edited
20 September 2023:
 - Localization: peer grading campaigns in English or German (students' view)
 - extended admin view (campaign summaries)  
15 August 2023:
 - export detailed student input grades to lecturers' group summaries
 - beautifying excel exports (better readability)
17 July 2023:
 - excel export of participants' peer grading results
 - reminder function for defaulting participants, even after peer grading campaign's end
 - bug fixing (ghost mailing, pdf export)