Upgrade to 0.21.0 - No incomming connections via Tor after upgrading
I think everybody using Tor with the newest Core has the same problem, including myself. There’s a Good explanation here why this is happening:
https://www.reddit.com/r/Bitcoin/comments/kzhhgk/bitcoin_core_0210_tor_v3/
My solution was to roll back (for now) to the previous version. It now works fine.
I still do not understand why this appears not to be backwards compatible with Tor v2. As the official bulletin release clearly states:
“This release adds support for Tor version 3 hidden services, and rumoring them over the network to other peers using BIP155. Version 2 hidden services are still fully supported by Bitcoin Core, but the Tor network will start deprecating them in the coming months. “