zur Information: Die kommenden Thunderbird-Versionen sollen an die Firefox-Versionsnummerierung angepasst werden.
Version number changes for Thunderbird
Ein Auszug aus dem Beitrag von Mark Banner:
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.