Lightning Version History

73 versions

Be careful with old versions!

These versions are displayed for reference and testing purposes. You should always use the latest version of an add-on.

Version 2.6.6 3.6 MB Works with SeaMonkey 2.21 - 2.21.*, Thunderbird 24.1.1 - 24.*

Version 3.3b1 4.5 MB Works with SeaMonkey 2.28 and later, Thunderbird 31.0 and later

Version 2.6.5 3.6 MB Works with SeaMonkey 2.21 and later, Thunderbird 24.1.1 and later

Version 3.2b1 4.5 MB Works with SeaMonkey 2.27 and later, Thunderbird 30.0 and later

Version 3.1b1 3.4 MB Works with SeaMonkey 2.26 and later, Thunderbird 29.0 and later

Version 3.0b1 3.8 MB Works with SeaMonkey 2.25 and later, Thunderbird 28.0 and later

Version 2.9b1 3.8 MB Works with SeaMonkey 2.24 and later, Thunderbird 27.0 and later

Version 2.6.4 2.6 MB Works with SeaMonkey 2.21 and later, Thunderbird 24.1.1 and later

Version 2.6.3 3.6 MB Works with SeaMonkey 2.21 and later, Thunderbird 24.1.1 and later

Version 2.8b1 3.8 MB Works with SeaMonkey 2.23 and later, Thunderbird 26.0 and later

Version 2.6.2 3.6 MB Works with SeaMonkey 2.21 and later, Thunderbird 24.1.0 and later

Version 2.7b1 3.9 MB Works with SeaMonkey 2.22 and later, Thunderbird 25.0 and later

Version 2.6.1 3.6 MB Works with SeaMonkey 2.21 and later, Thunderbird 24.0.1 and later

Version 2.6 3.7 MB Works with SeaMonkey 2.21 and later, Thunderbird 24.0 and later

  • On Windows, the binary component is now signed. This avoids issues with some virus scanners.
  • It is now possible to make a recurring event finite without opening the custom recurrence dialog (see your event dialog).
  • You can now create a monthly recurring event on the last day of the month.
  • Events can have multiple categories, selection is available in the event dialog.
  • Updated to the latest timezone information 2013d.
  • Its now more obvious what to do when no calendars support email invitations.
  • Support for Google Calendar via CalDAV using their new v2 endpoint.
  • Mac and Linux now support overlay scrollbars, giving you more room in the month view.
  • Some view related performance fixes.
Important Information:
If you are using Google Calendar via CalDAV, you MUST upgrade to the newest endpoint. Please see this blog post for more details.

Version 2.6b2 3.5 MB Works with SeaMonkey 2.21 and later, Thunderbird 24.0 and later

Version 2.6b1 3.4 MB Works with SeaMonkey 2.21 and later, Thunderbird 24.0 and later

Version 2.5b2 3.7 MB Works with SeaMonkey 2.20 and later, Thunderbird 23.0 and later

Version 2.5b1 3.7 MB Works with SeaMonkey 2.20 and later, Thunderbird 23.0 and later

Version 2.4b1 3.6 MB Works with SeaMonkey 2.19 - 2.19.*, Thunderbird 22.0 - 22.*

Version 2.3b2 1.9 MB Works with SeaMonkey 2.18 - 2.18.*, Thunderbird 21.0 - 21.*

Version 2.3b1 2.5 MB Works with SeaMonkey 2.18 - 2.18.*, Thunderbird 21.0 - 21.*

Version 1.9.1 2.7 MB Works with SeaMonkey 2.14 - 2.14.*, Thunderbird 17.0 - 17.*

Version 2.2b1 2.0 MB Works with SeaMonkey 2.17 - 2.17.*, Thunderbird 20.0 - 20.*

Version 2.1b1 1.3 MB Works with SeaMonkey 2.16 - 2.16.*, Thunderbird 19.0 - 19.*

Version 2.0b1 1.9 MB Works with SeaMonkey 2.15 - 2.15.*, Thunderbird 18.0 - 18.*

Version 1.9 2.7 MB Works with SeaMonkey 2.14 - 2.14.*, Thunderbird 17.0 - 17.*

Version 1.9b2 2.3 MB Works with SeaMonkey 2.14 - 2.14.*, Thunderbird 17.0 - 17.*

Version 1.9b1 2.1 MB Works with SeaMonkey 2.14 - 2.14.*, Thunderbird 17.0 - 17.*

Version 1.8 2.7 MB Works with SeaMonkey 2.13 - 2.13.*, Thunderbird 16.0 - 16.*

Version 1.8b1 2.0 MB Works with SeaMonkey 2.13 - 2.13.*, Thunderbird 16.0 - 16.*