In the v8.0 release of the library, the Lextm.SharpSnmpLib.Opaque constructor that takes a byte array as the parameter has internal accessibility. I think it should be public. I understand that you consider Opaque to be deprecated, but this limits the capability of the library. For example, I would like to simulate an SNMP agent that defines Opaque types.
One place you will find usage of the Opaque type is in the [UCD-SNMP-MIB extensions' Textual Conventions](http://net-snmp.sourceforge.net/docs/mibs/ucdavis.html#textconventions).
One place you will find usage of the Opaque type is in the [UCD-SNMP-MIB extensions' Textual Conventions](http://net-snmp.sourceforge.net/docs/mibs/ucdavis.html#textconventions).