Handling of RSASHA256 and RSASHA512 in 9.6.1-P1 ?

[Sue True]

Does 9.6.1-P1 as authoritative nameserver support RSASHA256 and RSASHA512 ?

We are running 9.7.1-P2 and would like to use RSASHA256 or RSASHA512 to 
create the keys, but our secondary is still on 9.6.1-P1, can they handle 
our singed zone with RSASHA256 or RSASHA512, or they have to upgrade ?

I tried 9.6.1-P3 and got these errors:

# rndc status
version: 9.6.1-P3 (unknown)

#dnssec-keygen -a RSASHA256 -b 1024 test.iu.edu
dnssec-keygen: unknown algorithm RSASHA256

#dnssec-keygen -a RSASHA512 -b 1024 test.iu.edu
dnssec-keygen: unknown algorithm RSASHA512

Also the this is item 2726. of 9.7.0b2 release:
2726.   [func]          Added support for SHA-2 DNSSEC algorithms,
                         RSASHA256 and RSASHA512. [RT #20023]


Thanks,
Sue