Update draft-ietf-quic-transport.md

Co-Authored-By: ianswett <ianswett@users.noreply.github.com>

draft-ietf-quic-transport.md

@@ -1069,13 +1069,9 @@ to cease using the connection IDs when requested can result in connection
 failures, as the issuing endpoint might be unable to continue using the
 connection IDs with the active connection.
 
-An endpoint MAY elect to only send or retransmit RETIRE_CONNECTION_ID frames
-with sequence numbers greater than or equal to the highest Retire Prior To field
-received minus its advertised active_connection_id_limit. This bounds the
-necessary state at the endpoint. For example, if an endpoint receives a Retire
-Prior To field of 7 and has an advertised active_connection_id_limit of 4, it
-may cease sending any RETIRE_CONNECTION_ID frame with sequence number less than
-3.
+An endpoint MAY elect to limit the number of outstanding RETIRE_CONNECTION_ID frames
+to bound the necessary state.  In order to allow a peer to retire all previously issued
+connection IDs, this limit SHOULD be at least the active_connection_id_limit.
 
 Peers SHOULD NOT issue updates of the Retire Prior To field before
 receiving RETIRE_CONNECTION_ID frames for the previous update of Retire Prior