PowerSNMP for .NET Releases

Released: Dec 4, 2020

Updates in V4.11.1.0


  • Fixed a minor compatibility issue so that Dart.Snmp.Standard.dll can be used with .NET 5.0.

Released: Jul 13, 2020

Updates in V4.11.0.8


  • Added support for Datagram Transport Layer Security (DTLS) using RSA and DSA certificates.
  • Developer Note: The constructor InformMessage() has been obsoleted but not removed. Users should use InformMessage(long sysUpTime, string oid) going forward.

Released: Mar 21, 2018

Updates in V4.10.0.1


  • Support for FIPS complaint AES encryption.


  • Resolved an issue where a malformed SNMP message could result in a null reference exception being thrown.

Released: Feb 22, 2018

Updates in V4.9.5.8


  • Added support for .NET Core or .NET Standard projects.

Released: Mar 30, 2017

Updates in V4.9.4.1


  • An issue in SNMPv3 communications where encryption keys were regenerated every time they were needed has been fixed.

Released: Mar 8, 2017

Updates in V4.9.3.0


  • Adds support for Visual Studio 2017.

Released: Oct 10, 2016

Updates in V4.9.2.0


  • The following variable methods have been added to the VariableCollection collection to provide more convinient access to items within the collection:
    • GetByNodeName
    • GetByName
    • GetByOid
    • GetByMibNode
  • Engine.Clone, TrapUserList.Clone, and User.Clone methods were added.

Released: Aug 15, 2016

Updates in V4.9.1.0


  • A minor compatibility change was made to allow messages that tag TimeTicks as Integer to be decoded.


  • Displayhint is now correctly inherited from base MIB node definitions.
  • linkDown, linkUp, and egpNeighborLoss have been added to the default notification node list.

Released: May 10, 2016

Updates in this release

Updates in V4.9.0.1

  • XML serialization support has been added to the SNMP message classes.
  • Dual Mode (simultaneous IPv6 and IPv4) sockets are now supported on compatible operating systems.
  • Compatibility with third-party SNMP agents and managers has been improved.
  • SNMP message classes will now provide correct licensing instructions, when used without a manager or agent component.
  • An issue with AES initialization has been addressed.
  • A compatibility issue involving CISCO SNMP entities, using AES-...

Released: Mar 19, 2015

Updates in this release

Updates in V4.8

  • Display a human-readable string representation of the MibNode's OID.
  • Thread safety has been improved for the VariableList and MibNodes classes.
  • A constructor overload which accepts an IDictionary collection has been added to the VariableList collection. This improves performance when instantiating the collection.
  • ToString(DisplayHint) has been added to UInteger32, Gauge, and TimeTicks.
  • Stricter enforcement of sub-OID length rules and other OID and sub-OID limits have been...