Version 2020/2 has decreased by 1 lesson compared to 2019/11.
Version 2020/5 has decreased by 53 lessons and about 4.5 hours compared to 2020/2.
Version 2020/6 Compared to 2020/5, 1 lesson has been added.
Version 2020/7 has decreased by 1 lesson compared to 2020/6.
Version 2020/10 has increased by 1 lesson compared to 2020/7.
The 2020/12 version is about 1 minute longer than the 2020/10 version.
Version 2021/4 Compared to 2020/12, 293 lessons and about 32 hours of time have been added. It has been re-recorded from the beginning. The total size of Legacy topics is about 350 MB. For this reason, it has not been separated from the main collection.
Version 2021/5 has increased by 42 lessons compared to 2020/4 without removing the (old) Legacy headings.
Version 2021/6 has been amended compared to 2021/5 in the previous three incomplete headings.
Version 2021/9 has not changed in number of courses and total time compared to 2021/6.
Version 2021/11 has increased by 32 lessons and time of 32 minutes compared to 2021 / 9-2021 / 6.
Version 2021/12 compared to 2021/11 increased by 1 lesson but the total time has not changed.
Version 2022/4 has increased the number of lessons and duration by 3 minutes compared to 2021/12. Its quality has also been upgraded from 720p to 1080p.
Version 2022/5 has no changes.