doc: add release notes for bitcoin#22729

doc/release-notes-22729.md

@@ -0,0 +1,21 @@
+Notable changes
+===============
+
+P2P and network changes
+-----------------------
+
+- Previously if Bitcoin Core was listening for P2P connections, either using
+  default settings or via `bind=addr:port` it would always also bind to
+  `127.0.0.1:8334` to listen for Tor connections. It was not possible to switch
+  this off, even if the node didn't use Tor. This has been changed and now
+  `bind=addr:port` results in binding on `addr:port` only. The default behavior
+  of binding to `0.0.0.0:8333` and `127.0.0.1:8334` has not been changed.
+
+  If you are using a `bind=...` configuration without `bind=...=onion` and rely
+  on the previous implied behavior to accept incoming Tor connections at
+  `127.0.0.1:8334`, you need to now make this explicit by using
+  `bind=... bind=127.0.0.1:8334=onion`. (#22729)
+
+- Bitcoin Core will now fail to start up if any of its P2P binds fail, rather
+  than the previous behaviour where it would only abort startup if all P2P
+  binds had failed. (#22729)