Merge bitcoin/bitcoin#22172: doc: update tor.md, release notes with r…

…emoval of tor v2 support

2ad034a89095bc1b148bdeeacfa5b75ec23b8a21 doc: update release notes with removal of tor v2 support (Jon Atack)
49938eee9c338cd96e357a0dd51dcce934ceb212 doc: update tor.md with removal of tor v2 support (Jon Atack)

Pull request description:

  Follow-up documentation to #22050 that removed support for Tor version 2 hidden services from Bitcoin Core.

ACKs for top commit:
  laanwj:
    ACK 2ad034a89095bc1b148bdeeacfa5b75ec23b8a21

Tree-SHA512: 0f13f9d1db7e11f1e3d9967b6d17b8dc3144b3ab3a258c706464c5e6ac5cbcf2ce2db4ea54be9939f05a82ebd1e7f325f50b435f9822c08b4f21ed4ac58de0af

doc/tor.md

@@ -8,6 +8,14 @@ may not. In particular, the Tor Browser Bundle defaults to listening on port 915
 See [Tor Project FAQ:TBBSocksPort](https://www.torproject.org/docs/faq.html.en#TBBSocksPort)
 for how to properly configure Tor.
 
+## Compatibility
+
+- Starting with version 20.0, Dash Core only supports Tor version 3 hidden
+  services (Tor v3). Tor v2 addresses are ignored by Dash Core and neither
+  relayed nor stored.
+
+- Tor removed v2 support beginning with version 0.4.6.
+
 ## How to see information about your Tor configuration via Dash Core
 
 There are several ways to see your local onion address in Dash Core: