I just upgraded to APM 10.5 from 10.2. It looks like the SNMP message format changed. Yet the documentation is almost unchanged.
APM 10.5 and later.
Yes. you are correct. The documentation has not yet been updated with these changes.
APM Support can tell you what is in the details of the following defects:
There was also a change in encoding of metricOID and messageOID, which now support UTF-8.
These have been requested to be documented in a future release