The Data Dump on Archive.org was last updated a month ago, but the torrent version is not available. In fact, no torrent has been made available for any release since June (see my index), when the Stack Exchange Archive entry was accidentally marked as spam.
Stack Overflow should consider reaching out to the Archive to see if this can be fixed.
Haney reached out to Jeff Kaplan at the Internet Archive, and the torrent has been restored:
https://archive.org/download/stackexchange/stackexchange_archive.torrentmagnet:
?xt=urn:btih:e73b7025a2af72124ae49d184fa3e8cec3f66016
&dn=stackexchange
&tr=http%3A%2F%2Fbt1.archive.org%3A6969%2Fannounce
&tr=http%3A%2F%2Fbt2.archive.org%3A6969%2Fannounce
&ws=https%3A%2F%2Farchive.org%2Fdownload%2F
&ws=http%3A%2F%2Fia600801.us.archive.org%2F23%2Fitems%2F
&ws=http%3A%2F%2Fia800801.us.archive.org%2F23%2Fitems%2F
ia python module works, although it requires registration to the archive.org .