The Thunderbird 5 release is just around the corner so its about time to provide a release candidate for the Lightning extension for calendaring. The upcoming version of Lightning will be called 1.0b4 and will be compatible with Thunderbird 5.
Unfortunately, this round of testing will be very very very short. Thunderbird 5 is slated for this Tuesday, the 28th and its critical that we have our release ready for this date. To compensate for the short period, we will be ready to spin another release if something major is broken, so if you are reading this after the release, please do file bugs as quick as possible if you find some.
Candidate builds for Lightning 1.0 beta4 in 36 languages are available as of now for:
A corresponding build of the Provider for Google Calendar is also available at those locations.
Note you will need Thunderbird 5 (or a beta thereof) to try it out. You are encouraged to back up your profile before upgrading. To install these builds in Thunderbird 5, please follow these steps:
- Download the build for your operating system to a folder on your hard disk.
NOTE:Please make sure, that you right-click on the links above and choose “Save Link as…”. Otherwise Firefox will try to install Lightning and you will get an error message like “Lightning 1.0b4 could not be installed because it is not compatible with Firefox.”
- Open Thunderbird, then open its add-on manager via Tools –> Add-ons (or the corresponding entry in your language)
- Click on the Tools Icon, then select “Install Add-on from File…” and navigate to the lightning.xpi file that you just downloaded.
- Restart Thunderbird after the add-on installation has been performed. Voila!
Remember, testing is very important. The earlier errors are found, the faster we can react and possibly post another release on short notice.
Please tell us what you think of these candidate builds and file bugs in Bugzilla as you go. Thank you very much for your support, we couldn’t do it without you!