The reason why they've stopped temporarily is due to an ongoing court case in India initiated by Elsevier. I'm not sure this is the best article on the case but basically sci-hub agreed not to post any new articles for a period of time (which has been extended) while the case is ongoing:
They did release a bulk issue of 2.7 million articles a few months ago (as part of the torrent collection available from libgen), but nothing new since then.
https://www.hindustantimes.com/india-news/no-new-articles-on...
They did release a bulk issue of 2.7 million articles a few months ago (as part of the torrent collection available from libgen), but nothing new since then.