- Improved (fixed) logical consistency checks that prevent the
addition of a recurrence frequency without a due date.
- Improved (fixed) logical consistency checks that prevent the
addition of an until date with a recurrence frequency.
- When a recurring task is modified, all sibling instances, as well
as the parent task now get modified.
- When a recurring task is appended, all sibling instances, as well
as the parent task now get modified.
- Updated documentation.
- It is now possible to upgrade a regular task to a recurring task,
which is triggered by the "recur" attribute.
