Three weeks ago, I shared some usage statistics for Lightning with you.
One of the things that I looked at then was the adoption of Thunderbird among Lightning users. Back then Thunderbird 3 users were still lagging behind, but now I can report that on the last weekend, the ratio of Lightning users on Thunderbird 3 was higher than the ratio of Thunderbird 2 users for the first time. Here’s the graph showing the steady increase of Thunderbird 3 usage since November 25th in 2009, when the first release candidate for Thunderbird 3 was released.
As already noted in the earlier article, the ratio of Thunderbird 3 users is much higher on the weekends compared to the Thunderbird 2 users. But even during the workweek we’re catching up pretty fast, even faster than on the weekends.
Interested observers will notice that the graph in this post and the earlier graph differ slightly. The reason is that in the current chart I’ve also incorporated the numbers of pre-release versions, like 3.0 beta3 or 220.127.116.11pre.
And if someone is asking himself why I only list Thunderbird 3 and Thunderbird 2 ratios here, the answer is that all other versions, e.g. users of Thunderbird 3.1 nightly builds, Thunderbird 1.5 users, SeaMonkey users and people that installed Lightning into Firefox all taken together account for not more than 0.5% of our total active daily users.
I hope that you will find this as interesting as I do.