Weekly Incubator Update: Tracking Progress from January 17th to January 24th

Welsh launching this week The Welsh course is expected to beta launch this week. Including Welsh, there are seven courses in the 90s.

Estimated beta launch dates
Duolingo has provided the contributors to customize the algorithm-reported launch dates and already several course contributors have made use of this feature. This will help set the right expectations for the eagerly waiting Duolingo community.

PHASE 1 Progress: Total 29 courses

Spanish for Chinese - 100% | 100% | 100% | 100% (+0)

Welsh for English - 100% | 99% | 99% | 99% (+0) 27-Jan-2016

Spanish for Russian - 98% | 99% | 99% | 99% (+0) 28-Feb-2016

French for Arabic - 97% | 98% | 98% | 98% (+0) 1-Feb-2016

Vietnamese for English - 93% | 96% | 96% | 96% (+0) 31-Jan-2016

English for Thai  - 93% | 93% | 93% | 93% (+0)

French for Russian - 87% | 88% | 90% | 90% (+0)

Swedish for Arabic - 77% | 83% | 86% | 86% (+0) 10-Feb-2016

German for Italian - 80% | 81% | 81% | 82% (+1)

Hungarian for English - 80% | 80% | 80% | 80% (+0) ^

German for Arabic - 53% | 62% | 72% | 77% (+5)

Romanian for English - 72% | 73% | 74% | 75% (+1)

Greek for English - 51% | 77% | 72% | 75% (+3)

Hebrew for English - 73% | 72% | 72% | 72% (+0) 10-Jun-2016

Spanish for Italian - 68% | 68% | 68% | 68% (+0)

Swedish for Russian - 61% | 61% | 61% | 61% (+0)

Portuguese for French - 48% | 52% | 53% | 55% (+2)

Guarani for Spanish - 32% | 36% | 43% | 52% (+9) *

Swahili for English - 23% | 23% | 45% | 45% (+0) 1-Jun-2016 ^

Italian for Portuguese - 41% | 41% | 42% | 42% (+0)

Russian for Turkish - 40% | 41% | 42% | 42% (+0) 31-Dec-2016

French for Turkish - 40% | 40% | 40% | 40% (+0)

Esperanto for Spanish - 30% | 31% | 32% | 35% (+3)

Czech for English - 28% | 29% | 30% | 31% (+1) 27-Apr-2017 ^

Hindi for English - 26% | 26% | 26% | 26% (+0) 15-Aug-2016 ^

Klingon for English - 21% | 21% | 21% | 21% (+0)

French for Chinese - 9% | 9% | 9% | 9% (+0)

Yiddish for English - 8% | 8% | 8% | 8% (+0)

Indonesian for English - 0% | 0% | 0% | 0% (+0)

Mean - 2.72% | 2.03% | 1.79% | 1.03% (-0.76)
Median - 1% | 0% | 0% | 0% (+0)

* This week's Leader Extraordinaire!
^ The Hungarian, Hindi, Czech, & Swahili teams' progress is as per their own calculation

Progress Visualized:

Here's what the contributing teams have said during the last week:
(For Phase-1 and Phase-2 courses by default, and for Phase-3 courses per request).

amuzulo from Team EO from EN wrote one week ago:

250K learners, getting closer to beta and 2 new contributors!

I'm super stoked that we've reached a quarter of a million learners for the Esperanto course for English speakers! Also, we're getting very close to getting below 3 reports per 100 users (to go stable) while still working on Tree 2.0. We've also just added two new contributors, so give them a big welcome!

Jennifer Bondelid (Enyalie): I began learning Esperanto through Esperanto-USA's 10-lesson postal course at the age of 11. I didn't become involved in the community at that time, but the experience started me on a seven-year language learning adventure. At the end of that time, I'd seen enough declensions and irregular verbs to last me quite a while, and I happily returned my focus to Esperanto. I was a regular student and later a student-teacher at NASK, received my B.A. in teaching Esperanto, acted in Pasporto al la Tuta Mondo, taught Esperanto to individuals and small groups, founded Kino-Teatro-Festivalo in 2014, and I teach at NASK.

Emerson Werneck (Emersono): I started with Esperanto in 1986, during the Brazilian Esperanto Congress in Belo Horizonte. I have already participated in some World Esperanto Congresses, and in many national events. I graduated in Journalism, English Letters, Japanese Letters, and got my Master´s in Linguistics at the University of Brasilia, with a dissertation on neology and the mechanisms of word formation in Esperanto. I was also the editor of Brazila Esperantisto for about a year. I am a lifelong associate of UEA, and a UEA delegate for Journalism.

alukasiak from Team Polish wrote 4 days ago:

It's over 100,000!


It has been over a month since the course was released in Beta. The number of learners has just exceeded 100,000! It is wonderful that so many people decided to learn Polish, definitely not the easiest of languages.

We continue to work on improving the course. Your reports have helped us to get rid of many issues and mistakes. The community that has gathered around the course is absolutely fantastic!

We have added a few more Tips & Notes sections since the release, but there is still much to do in this respect. Now that we have sorted out other issues, Tips & Notes are our top priority – more will follow in February.

Also: if you have any questions concerning the course, you may now refer to our Frequently Asked Questions topic in the forums.

Thank you for your support!

Team Polish

rmcode from Team Welsh wrote yesterday:

To be released very soon!

Apologies to anyone worried about the lack of an update last week.

I'd made a presentation about the course to a large group of fellow Welsh for adults tutors, for whom the course is explicitly designed, and the response was underwhelming to say the least. This was a very depressing experience.

Sometimes we forget how far in advance we are of the general population.

Anyway the good news is that we seem to have removed a couple of bugs in the course and we're now doing last minute stuff to get it in a reasonable state for release sometime in the middle of next week.

Cerddwn ymlaen!!

nueby from Team Czech wrote 12 hours ago:

Week 29

620 words, 31%.

jitengore from Team Hindi wrote just now:

Week 33: 26% complete, beta launch 15th of August, 2016

Duolingo has provided us the means to customize the beta launch expected date. We are biting the bullet and setting it to 15-Aug-2016 - the Indian Independence day.

AndrsBrny from Team Hungarian wrote a little after the bell.

Another Sunday update

Hello everyone,

it's Sunday again, time for another update on our progress. Thank you very much for all the kinds words, you're sending us on duolingo, it's really nice to see that you're interested and keen to start learning.

Things are moving along nicely! I mentioned two weeks ago that we've had about a third of the sentences with only a single translation fixed and I'm happy to report that we just crossed the 40% mark, thanks to a great effort by woolfool (you can figure out how long it will take before we reach 50%).

And DonaldKron is doing great work on fixing our proper names! So things are really progressing swiftly and we're also improving the quality of the course before we get it into beta!

Summary (tl;dr)

We're making good progress: 40% of the sentences with single translations have gained new ones! Recall that 50% is the threshold we set ourselves for beta.

Thanks for reading, keep those comments coming and see you next week!

Thanks to vinrute for bringing this to my notice!

The Welsh course is expected to be launched this week. Several course teams have used the new incubator feature to custom report the launch dates.

The next update is expected on Sunday, 31st of January at 4:00 pm UTC.

Previous Update 10-Jan to 17-Jan

Last updates from: 2015: Dec, Nov, Oct, Sep, Aug, Jul, Jun, May, Apr, Mar, Feb, Jan.

January 24, 2016


Welsh is the best team ever ! Congrats to you guys, you did an awesome job to build the course and keep us updated :D !

January 24, 2016

Well done team Guarani on so much progress. I am looking forward to that one. And Welsh! So close!

January 24, 2016

Looks like I'll have new languages to explore & learn this summer! Keep up the great work, everyone!

January 24, 2016

I'm curious to know what exactly the Welsh tutors said about the course. Was there anything worth taking on board to improve the course did they just not like the Duolingo format?

January 24, 2016
  • 1562

Incomprehension was the standard response, "oh no not another thing on the computer for me to try and gat my head around".

It's an age thing really, many of the people there under 40 get it.

January 24, 2016

That's understandable. What did they make of the content?

January 24, 2016
  • 1562

That shouldn't be a problem since many of the units support the work in the standard course books for teaching Welsh to adults.

January 24, 2016

Vietnamese ready in one week? That would be amazing, but I'll be super excited even if it's ready in a couple of months! So looking forward to it : )

January 24, 2016

I'm very excited too! They did say it would take an additional month or so for the voice recording to complete, so I'm thinking March 1 at the earliest.

January 25, 2016

I can't wait to be able to start Welsh this week! I'll dedicate at least 14 days to doing nothing but Welsh and see how far I can get through the course in that time.

Oh, and sorry to hear that the presentation garnered a lackluster response. Apparently, still not many people know how good Duolingo is at introducing a language, especially to adult learners. It may not get you fluent, and it's certainly not a phrasebook (and it shouldn't be), but it gives you a wonderful foundation on which to build the rest of your language learning experience.

Since not all of my badges are correct: German is at 18, Dutch is at 13, English is at 8.

January 24, 2016

I noticed the Hungarian team posted an update within the last hour. Could you include it in this week's incubator update? As always, thanks soooo much for your work in putting this post together each week!

January 24, 2016

I don't want to get my hopes up, but two more weeks!

January 24, 2016

Thanks, vinrute! Added.

January 24, 2016

Has anyone else been brushing up on Welsh spelling and pronunciation in anticipation of the course No, just me? Ok... ;)

January 24, 2016

You're not alone :P but I also tried some grammar and just left it at that XD

January 24, 2016

Welsh is coming out this Wednesday! I'm so excited!!!

January 24, 2016

Can't wait for Guarani!

January 24, 2016

Exciting stuff! Thanks as always for all your hard work, Jiten, you rock :D

January 24, 2016

Several of the top courses have estimated dates not included, e.g. Vietnamese.

January 24, 2016

Totally my bad! The formula did not get copied for a few rows... Corrected now.

January 24, 2016

Awww... Klingon. Keep going! You guys can do it!

January 24, 2016

Hey, I noticed you could sign up to contribute to other languages, including Bengali, Punjabi, Dothraki and Sindarin. Is there any way to stay updated on if and when those languages will be approved for phase 1?

January 24, 2016

No, there isn't, and there really should be.

(Just like this overview should ideally be an automated part of the actual Incubator, rather than something hand made and invented by a user and continued by a volunteer.)

January 25, 2016

all. of. this.

January 25, 2016

And Greek is now already up to 76.43%! Yay!

pro-tip: if you make a bookmark whose URL is

javascript:alert(parseFloat(document.getElementsByClassName('course-progress-bar')[0].getAttribute('aria-valuenow'), 10).toFixed(2) + '%');

then you can click that bookmark on any incubator status page to instantly see the exact percentage!

January 25, 2016

So many languages, so little time! :-)

Even though I'm busy with my current languages, I may just have to try out Welsh so I can have a little dragon next to my name ;-)

January 25, 2016

I live only 30 ish miles from the Welsh border (although not really at the Welsh-speaking end of the country), so I have much more reason to learn Welsh, but I think I would anyway because Wales has the best flag to ever flag <3

January 25, 2016

Maybe for future tree revisions you can add a "Colloquial" section. You can either put it towards the end, or have it as a bonus skill. That way after we get done with all the proper forms and what have you you can learn how common spoken and/or text language differs.

January 25, 2016

Russian has it!

January 25, 2016

They do, are you sure?

January 25, 2016

It's the third to the last skill in the tree.

January 25, 2016

They definitely have it. Things like блин, which is a mild expletive (literal translation is pancake, seriously) and чё which is a colloquial form of что, туча народу (a lot of people), чуть/чуть-чуть - used in constructions like a little bit, or that one almost did something, ужасно in a colloquial usage for terribly/awfully (I'm awfully tired, for example), зайти for to pop round (I have a feeling the translation taught is less British than that, always trips me up!), мне всё равно (I don't care/it's all the same to me), etc.

There's more, too, those are just the ones I can remember offhand (and hopefully remember more or less correctly!). It's a fun skill :)

January 25, 2016

Just a detail : the news is from the team EO from EN, not ES ;)

January 24, 2016

Is there any chance that someone will work on Russian for German speakers or Japanese for English speakers in the near future? Their counterparts (German for Russians and English for Japanese) already exist, so here's me hoping the teams might consider continuing...

January 27, 2016

Japanese for English speakers in the near future?

"in the near future" -> see this discussion and this one explaining some reasons why it's not "yet" here.

Russian for German speakers

It's likely Duo will wait for the Russian for English speakers course to go out of beta before adding in incubator any other course teaching Russian.
It's not a "written in the stone" rule, but it's often the case. They want to have fixed all issues with teaching this or that language before creating any more courses teaching it.

January 27, 2016

Thanks for the information. :)

It's completely understandable to want to have a course fixed for one language of instruction before creating it for another. I'm more than willing to wait if that means material of higher quality in the end. :) I also wasn't aware that having a non-Latin target language could cause so many problems...

But it's nice to hear that the courses are planned, even if they might not come any time soon. Those are much better odds than I had feared. :)

January 27, 2016

Duolingo already started making Russian for Turkish speakers: . :)

Maybe Duolingo will start making Russian for German speakers once Russian for Turkish speakers goes into beta? :)

January 28, 2016

I've been absent from the Duolingo discussion page for a while, so could someone inform me as to why Indonesian hasn't seen any growth since its incubation?

January 25, 2016

I think someone mentioned that they're building the tree from scratch.

January 25, 2016

Perhaps it's something similar to the approach of team Klingon.

loghaD has apparently been busy these past ten months cataloguing vocabulary, deciding what goes where, and this very important work is not reflected in the "percentage complete" number. So it took ten months for this number to reach 21%, where it sat 18 hours ago.

loghaD does a lot more work that is measured by this number, and BOOM, the number now sits at 27%, a 6% jump in 18 hours.

I've just provided one possible scenario here, but it makes you think, yes?

February 13, 2016

Make that 34% done! Nice to see it's far from dead. That's a 13% jump now.

February 13, 2016

Good news and bad news on that subject.

Bad news, the jump was caused by a glitch in the system, and the figure is back down to 21%. :(

Good news, loghaD says that he expects the course to make a similar (this time real) jump in the near future. :)

February 13, 2016

Yeah, I noticed that several others were reporting a huge jump in progress.

February 14, 2016

So disappointed at the lack of progress in the Hindi for English course.

February 1, 2016

I think the German tree should have a revamp, and explain better some of the harder Grammatik concepts

February 1, 2016
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