Right now I would download a small video from walkthroug from a game. so I started with
alex@Guilmon:~/Videos$ sudo youtube-dl -U
ERROR: can't find the current version. Please try again later.
alex@Guilmon:~/Videos$
after little bit searching I found this and this too
Is there an alternative? with my current version I am not able to download it
alex@Guilmon:~/Videos$ youtube-dl --version
2020.09.14
alex@Guilmon:~/Videos$
The latest version is available on the official website, where you can download the tar.gz file (v2020.09.20). On the homepage, there is a message: "Currently our dev repository is taken down due to DMCA takedown notice by RIAA. Downloads still work as usual."
The widely used fork youtube-dlc is still being actively maintained.
It's probably a good idea to switch for the time being because the September release from youtube-dl.org is already bitrotted and doesn't work with YouTube (and possibly some other sites) any more. The most recent youtube-dlc release (dated today) does work.
It looks like youtube-dlc has removed the tests that were used as a pretext to take down the main repository. Whether that means they're safe, I couldn't say.
You could try this. This was in the readme of the original repo.
This updated my version to 2020.09.20. Maybe that'll be enough for you.