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Does not notify attendees when event is updated Rated 2 out of 5 stars
@ekaljuk: Did your testing include updating events? This feature has been broken on Windows for over a year:
Bug ID Summary
703513 Updating an existing event does not notify the attendees
709604 Updated invitations in Thunderbird/Lightning are not sent out
716373 Lightning doesn't send event invitations when adding attendees to an existing event
I love Lightning. I use it every day. But it has serious problems that no one is addressing.