Note that older spec versions say 'recovery key'

proposals/4161-crypto-terminology.md

@@ -306,7 +306,7 @@ should provide a way for users to be educated on the terminology change (e.g. a
 tooltip or help link): e.g. "Your recovery key may also have been referred to as
 a security key in the past"
 
-⚠️ Be aware that at time of writing the spec uses
+⚠️ Be aware that old versions of the spec use
 ["recovery key"](https://spec.matrix.org/v1.8/client-server-api/#recovery-key)
 to refer to the private half of the backup encryption key, which is different
 from the usage here. The recovery key described in this section is referred to