Version 1.20.0 (released 06-07-2021)
- New look: Calendar and event list are possible in several combination: "Calendar above events list",
  "Calendar under events list", "Only events list" and "Only calendar".
- New look: Optional colors for Calendar.
- New look: Text control for note (optional show/hide).
- New recurrences: "Monthly at business day", "Monthly at given business day", "Monthly at given day" and many others.
- New feature: Dialog for enter public holidays.
- New options: "Start application on login for reminders" only on *nix and windows.
  "Start application minimalized at tray" and "Hide tray icon".
- New option: Encrypt/decrypt database.
- New option: Show/hide columns at Events list.
- New option: Date and time format.
- New option: Filter for events list.
- New option: Highlight event at list.
