DONE:

• use https://api.kde.org/frameworks/kio/html/classKUrlComboBox.html instead of QLineEdit for the file name in ImportFileWidget and save/load the history of used files (Martin)
• automatically recalculating columns when data changed (Alexander)
• making copy of project file before saving, to have a backup if save is not successful. Don't know how other programs handle something like this (Alexander)
• FFT not calculated automatically when loading project (Alexander)

GENERAL:

• improve cantor on Windows and macOS
• check Windows and macOS port
• update translations
• tidy, Coverity Scan, cppcheck, PSV, ...

Links:

• Mac port: T3196
• Windows port: T3118