What is v6?

I was on my Duome page;, and it is now saying that I am in Tree3 (v6). What exactly does v6 stand for? Does it say other things for some of the rest of those in the third tree? Is this version 6? Does anyone have a handle on the setup of all the various versions of the different courses and A/B tests?

November 27, 2018


I also have Tree 3 V6. I assume that this is a version number.

November 27, 2018

Quote T.H: How is this newest EN->FR A/B tree (156 skills) called? V5 or V6?

Obviously it is called Tree12 and the previous staff tree is Tree8 (not V4) as Tree2 already was V5 :-)

Quote Sitesurf:

Well, if I remember well, the oldest French tree still currently available to some users is labelled Tree2. It was not the 2nd version since the first was Tree0 (2012). It was actually V3.1 (@2015?), therefore the 5th version, with 78 skills

The last Tree version written by the volunteer team was launched in March this year. It is commonly called Tree3 (and the 6th version of the French course), with 96 skills.

The latest two French trees produced by Duolingo staff and currently in A/B test are labelled Tree8 (119 skills) and Tree12 (156 skills) respectively.

French detail stats about all trees


Quote CommeuneTexane: The newest version, Tree12 (156 skills), was released to new users only on November 20th. It is currently undergoing A/B testing. I will also edit my post to reflect the staff's terminology for the trees, Tree8/Tree12.


November 28, 2018

Thank you Thomas, it was only in the last few days that it began to say "Tree3 (v6)" without any explanation.

November 28, 2018

i assume this is a version number as it has skills thet my tree does not have

November 28, 2018

Catherine, you seem to be in "Tree2 (v5)". You can see it on your own Duome page here;

November 29, 2018
Learn French in just 5 minutes a day. For free.