I am happy to announce the release of Lightning 2.6, compatible to Thunderbird 24 and Seamonkey 2.21. The release went live on Tuesday, September 17th and is the next major release after Thunderbird 17 and Lightning 1.9. If you are using the Provider for Google Calendar, you will also have to upgrade to version 0.25.
You may have not received the updates automatically because of server side throttling, you can either wait until the update occurs, force checking for updates via the About Thunderbird dialog, or grab them manually:
- Thunderbird 24 can be retrieved from mozilla.org
- Seamonkey 2.21 is available on the release page of the Seamonkey Project.
- Lightning 2.6 can be downloaded from addons.mozilla.org.
- The Provider for Google Calendar 0.25 can also be downloaded from addons.mozilla.org.
Contributed builds, for example for Solaris, are available on the ftp servers.
Before upgrading, be sure to backup your profile so you can restore in case something goes wrong unexpectedly.
The release notes can be found on addons.mozilla.org. An important note for users of Google Calendar via CalDAV (not via Provider for Google Calendar): Due to a server side change at Google, you must update the URL of the calendar, as described in this post.
Should you be experiencing any issues, here are some steps that might resolve them:
- Make sure that you are running Thunderbird 24 or SeaMonkey 2.21.
- Redownload and install Lightning using the download links above.
- If you are using the Provider for Google Calendar make sure you upgrade to version 0.25
If you enjoy this update or want to thank us for the hard work we have done, feel free to leave a review at addons.mozilla.org. If you have issues upgrading, please don’t misuse the reviews. Leave a comment here and I’ll try to get back to you soon! If you are sure you have found a bug, you can also search for it on bugzilla or file a new one if it doesn’t yet exist.