Duolingo Korean Course Update Expands From A2 to B2 Level

Duolingo Korean Course Update Expands From A2 to B2 Level Duolingo overhauled its Korean course this week, adding new content, restructuring existing lessons, and extending the course's proficiency ceiling from roughly A2 to B2 on the CEFR scale, according to the company's blog. The Duolingo Korean course update affects one of the platform's largest learner communities. For new students, it's a more ambitious course than before. For the 1.9 million active learners already mid-path, it's the same destination with a rearranged route. Korean ranked as the sixth most popular language on Duolingo in 2025 and had over 1.9 million active learners at the time of the rebuild. A 2025 review analysis of 190 Duolingo user reviews, published in Frontiers, found the most consistent criticism across Duolingo courses centered on lessons that stalled at basic skills and exercises that grew repetitive before learners felt ready to stop. The Korean overhaul is Duolingo's direct response to that pattern.