Maintainers at the Tor Project have removed more than 800 relay servers running outdated and EOL versions of the Tor software. Currently, the Tor network is composed of more than 6000 relays, some of them running outdated Tor software versions (in some cases back to the 0.2.4.x versions). Other relays are running the latest Tor software in nightly builds and alpha releases. The maintainers expect a new Tor stable release in November, it will reject End-Of-Life relays by default.”]
Source: https://securityaffairs.co/wordpress/92329/security/tor-project-eol-relays.html