Extending agent in ucd-SNMP 4.6.2 for V3

[kanda.samy]

Hi          I have to extend the agent of UCD-SNMP 4.6.2 for SNMP v3 . Is MD5 authentication is supported in UCD-SNMP 4.2.6 version? What are the issues/bugs  UCD-SNMP 4.6.2 have while extending the agent.   By Sam