Calendar Versions

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.

Lightning

Development Snapshots

The Lightning builds listed below should be considered unstable and are available for development and testing purpose only.

Lightning
Version
Thunderbird
Version
SeaMonkey
Version
Mozilla Platform
Version
Build Name
and Date
Changelog Comments
3.3a1 31.0a1
"Daily"
2.28a1 mozilla31 "nightly"
(comm-central)
every day
changes in 3.3  
3.2a2 30.0a2
"Earlybird"
2.27a2 mozilla30 "alpha"
(comm-aurora)
every day
changes in 3.2  
3.1b1* 29.0b1
"Beta"
2.26b1 mozilla29

"beta"
(comm-beta)
not yet released

changes in 3.1 * Visit the link and go down to the "Development Channel" box and download the Lightning version from there. Previous beta builds are listed at Lightning Version History.

Stable Releases

The Lightning releases listed below are considered stable and are recommend for daily usage.

Lightning
Version
Thunderbird
Version
SeaMonkey
Version
Mozilla Platform
Version
Release Date Changelog
3.0b1 --- 2.25 mozilla28 March 6, 2014 changes in 3.0
2.9b1 ---- 2.24 mozilla27 December 19, 2013 changes in 2.9
2.8b1 --- 2.23 mozilla26 November 15, 2013 changes in 2.8
2.7b1 --- 2.22 mozilla25 October 17, 2013 changes in 2.7
2.6.4 24.2.0 --- mozilla24.2 December 11, 2013 changes in 2.6.4
2.6.3 24.1.1 --- mozilla24.1.1 November 19, 2013 changes in 2.6.3
2.6.2 24.1.0 --- mozilla24.1 October 29, 2013 ---
2.6.1 24.0.1 --- mozilla24.0.1 October 13, 2013 changes in 2.6.1
2.6 24.0 2.21 mozilla24 September 11, 2013 changes in 2.6
2.5b2 --- 2.20 mozilla23 July 8, 2013 changes in 2.5
2.4b1 --- 2.19 mozilla22 May 24, 2013 changes in 2.4
2.3b2 --- 2.18 mozilla21 May 8, 2013 changes in 2.3
2.2b1 --- 2.17 mozilla20 March 6, 2013 changes in 2.2
2.1b1 --- 2.16 mozilla19 February 12, 2013 changes in 2.1
2.0b1 --- 2.15 mozilla18 November 29, 2012 changes in 2.0
1.9.1 17.0 2.14 mozilla17 March 6, 2013 changes in 1.9.1
1.9 17.0 2.14 mozilla17 November 20, 2012 changes in 1.9
1.8 16.0 2.13 mozilla16 October 09, 2012 changes in 1.8
1.7 15.0 2.12 mozilla15 August 28, 2012 changes in 1.7
1.6 14.0 2.11 mozilla14 July 17, 2012 changes in 1.6
1.5.2 13.0 2.10 mozilla13 June 21, 2012 ---
1.5.1 13.0 2.10 mozilla13 June 14, 2012 ---
1.5 13.0 2.10 mozilla13 June 4, 2012 changes in 1.5
1.4 12.0 2.9 mozilla12 April 23, 2012 changes in 1.4
1.3 11.0 2.8 mozilla11 March 13, 2012 changes in 1.3
1.2.3 10.0 2.7 mozilla10 March 9, 2012 ---
1.2.1 10.0 2.7 mozilla10 February 3, 2012 ---
1.2 10.0 2.7 mozilla10 January 23, 2012 changes in 1.2
1.1.1 9.0 2.6 mozilla9 January 5, 2012 changes in 1.1
1.0 8.0 2.5 mozilla8 November 7, 2011  
1.0b7 7.0 2.4 mozilla7 September 27, 2011  
1.0b5 6.0 2.3 mozilla6 July 29, 2011  
1.0b4 5.0 2.2 mozilla5 June 28, 2011  
1.0b2 3.1.* --- mozilla-1.9.2 June 24, 2010  
1.0b1 3.0.* 2.0 mozilla-1.9.1 January 12, 2010  
0.9 2.0.0.* --- mozilla-1.8.1 September 23, 2008  
0.8 2.0.0.* --- mozilla-1.8.1 April 4, 2008  

Stable ESR Releases

Lightning is compatible to the Thunderbird Extended Support Release (ESR) releases. We follow the ESR policy of Thunderbird and only do releases for security fixes. Additionally, there may be backported fixes for important regressions related to enterprise features like invitations.

Lightning
Version
Thunderbird
Version
SeaMonkey
Version
Mozilla Platform
Version
Release Date
1.9.1 17.0esr 2.14 mozilla17 March 6, 2013
1.2.3 10.0esr 2.7 mozilla10 March 9, 2012

Sunbird

Please note that Sunbird has been discontinued, see this blog post for details. There will be no further Sunbird release until further notice.

Sunbird
Version
Mozilla Platform
Version
Release Date
1.0b1 1.9.1 March 30, 2010
0.9 1.8.1 September 23, 2008
0.8 1.8.1 April 4, 2008

 

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Last updated by: Ssitter,