Version number changes for Thunderbird

Jonathan Protzenko jonathan.protzenko at
Thu May 26 21:26:55 UTC 2011

Hi Mark,

Does that mean that patches recently merged into comm-miramar will have 
to merged into comm-aurora as well for them to be taken into account 
for Thunderbird 6?


On Thu 26 May 2011 08:06:50 PM CEST, Mark Banner wrote:
> Following several discussions, the Thunderbird drivers have decided to 
> adopt the same version numbering scheme that Firefox has adopted 
> <> 
> following the transition to the rapid release process. This also means 
> that Thundebird will match its version numbers with the gecko version 
> numbers.
> Whilst we could have kept the same numbering system, or adopted a 
> different one, we felt that matching Firefox would make it clearer for 
> developers as to which version of Thunderbird was based on which 
> gecko/Firefox version.
> We'll also be de-emphasising the version numbers in our releases, it is 
> much more important that users keep up to date with the latest security 
> and stability fixes, and of course latest improvements, than being 
> concerned that a jump from one number to the next is a big jump.
> Therefore, we will be renumbering the current work in progress releases 
> as follows:
>   * Thunderbird 3.3 (aka Miramar) will become Thunderbird 5.0 (based on
>     gecko 5.0).
>   * The builds which will be produced from comm-aurora (where we merged
>     to last Tuesday), will become Thunderbird 6.0.
>   * The builds from comm-central which are currently numbered 3.4a1pre
>     will become Thunderbird 7.0.
> Mark
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