Important announcement from @torproject about the deprecation of v2 onion services:
https://blog.torproject.org/v2-deprecation-timeline
v3 onion addresses are recognizable by their 56 character identifier. They provide better security and anonymity protections than the previous version.
If you're running a SecureDrop instance and are still on v2, please see our docs for switching to v3, or enabling v3 alongside v2.
https://docs.securedrop.org/en/master/v3_services.html