Marius et al.
Presently my server employs ampr-ripd-2.3
Did not observed any issues so far.
encap.txt file at the very beginning contains two entries:
#
# encap.txt file - saved by ampr-ripd (UTC) Mon Jun 5 03:20:34 2017
#
route addprivate 44.0.0.1/32 encap 169.228.34.84
route addprivate 44.0.0.2/32 encap 169.228.66.251
RIP broadcast are coming through as before.
Best regards.
Tom - SP2L