The Recording Industry Association of America, Inc. (RIAA) has taken down YouTube-dl's GitHub repositories using a DMCA takedown notice.
YouTube-dl is an extremely popular command-line program used to download multimedia content from
YouTube.com and other sites. The project used GitHub repositories to host the program's source code and compiled executables that could be downloaded by users.
Today, the RIAA took down the YouTube-dl GitHub repositories by filing a DMCA (Digital Millennium Copyright Act) infringement notice with GitHub.