Duolingo DE from HU, versions:

Trees:
v0: 2020-03-25  ? (Beta)
v0: 2021-03-17  ? (Beta)
v1: 2021-09-10, 51 skills (51 different lessons)

Paths:
1.0: 2022-09-01, 51 skills and 70 stories (121 different lessons) (44 units)
1.1: 2023-09-10, 51 skills and 70 stories (121 different lessons) (33 units)
1.2: 2024-05-01, 51 skills and 70 stories (121 different lessons) (58 units)
1.3: 2024-05-10, 51 skills and 70 stories (121 different lessons) (51 units)
1.4: 2024-08-01, 51 skills and 70 stories (121 different lessons) (51 units) CEFR "INTRO"
(...)
3.0: 2025-08-13, 130 skills, 70 stories, 163 radios (363 different lessons) 130 units CEFR A2
(...)
Under construction...
(...)
2025/12/01: 130+164+163= 457 különböző lecke

JSON References and links:
courses_de_hu_v1


https://liuch.github.io/duolingo_courses_overview/
https://duolingo.fandom.com/wiki/Course_list
https://duolingodata.com/
https://duolingodata.com/oldtable.html
https://ardslot.com/duolingocrowns.html

Edited by Mat!/Ozone, 2025/12/07.