This page aims to give an overview of what version of Lightning is compatible with what version of Thunderbird. It also shows which Mozilla Platform Version is used in the respective version of Sunbird and Lightning.
The main goal of the Calendar Team is to synchronize the Lightning release cycle with Thunderbird. This usually means we will be using the latest Thunderbird and Mozilla codebase (comm-central and mozilla-central) for active development. If the Thunderbird schedule isn't yet clear, we will backport our changes to an older branch.
The Lightning builds listed below should be considered unstable and are available for development and testing purpose only.
|Version||Thunderbird Version||Mozilla Platform Version||Release Date|
|1.1a1pre||9.0a1||mozilla9||nightly (comm-central) (broken for online calendars)|
|1.1a1pre||8.0a2||mozilla8||nightly (comm-aurora) (broken for online calendars)|
|1.0b6pre||7.0b1||mozilla7||not yet available (comm-beta)|
The Lightning releases listed below are considered stable and are recommend for daily usage.
The next scheduled Lightning release is 1.0b6. It will be released together with Thunderbird 7.
|1.0b5||6.0||mozilla6||July 29th, 2011|
|1.0b4||5.0||mozilla5||June 28th, 2011|
|1.0b2||3.1.*||mozilla-1.9.2||June 24th, 2010|
|1.0b1||3.0.*||mozilla-1.9.1||January 12th, 2010|
|0.9||2.0.0.*||mozilla-1.8.1||September 23rd, 2008|
|0.8||2.0.0.*||mozilla-1.8.1||April 4th, 2008|
Please note that Sunbird has been discontinued, see this blog post for details. There will be no further Sunbird release until further notice.
|Mozilla Platform |
|1.0b1||1.9.1||March 30th, 2010|
|0.9||1.8.1||September 23rd, 2008|
|0.8||1.8.1||April 4th, 2008|