MQTTnet 3.1.0
MQTTnet is a high performance .NET library for MQTT based communication. It provides a MQTT client and a MQTT server (broker) and supports v3.1.0, v3.1.1 and v5.0.0 of the MQTT protocol.
No packages depend on MQTTnet.
* [Core] Added all builders to the MQTT factory.
* [Core] Removed global logger and refactored logging (BREAKING CHANGE!).
* [Client] Renamed _MqttClientConnectResult_ to _MqttClientConnectResult_ (BREAKING CHANGE!).
* [ManagedClient] Extended ReconnectAsync (thanks to @nvsnkv, #1202).
* [ManagedClient] Improved Amazon AWS support (thanks to @scottbrogden-iheartmedia, #1209).
* [ManagedClient] Fixed bug that allowed invalid subscriptions (Thanks to @marcelwinh).
* [Server] Added support for _RetainHandling_ (MQTTv5, BREAKING CHANGE!).
* [Server] Added support for _NoLocal_ (MQTTv5, BREAKING CHANGE!).
* [Server] Added support for _SubscriptionIdentifier_ (MQTTv5, BREAKING CHANGE!).
* [Server] Server now reports supported features properly after successful connection (MQTTv5, BREAKING CHANGE!).
* [Server] Fixed a memory/performance leak when using QoS Level 1.
* [Server] Exposed connection timestamp in client status.
* [Server] Refactored connection management code.
* [Server] Exposed more details in _MqttServerClientConnectedEventArgs_.
* [Server] Processing all pending messages before stopping (thanks to @AblEdge, #1234).
* [Server] Added support for a custom exception handler in _MqttServerMultiThreadedApplicationMessageInterceptorDelegate_.
* [Server] Removed logger from _MqttServerMultiThreadedApplicationMessageInterceptorDelegate_ (BREAKING CHANGE!).
* [Server] Fixed a memory leak when deleting sessions.
* [Server] Fixed timestamp check in server keep-alive monitor (thanks to @logicaloud, #1277).
* [MQTTnet.Server] Moved server project to a dedicated GitHub repository.
Git commit: 8020e66f
.NET Framework 4.5.2
- No dependencies.
UAP 10.0
- Microsoft.NETCore.UniversalWindowsPlatform (>= 6.2.10)
.NET Core 3.1
- No dependencies.
.NET Standard 2.1
- No dependencies.
.NET Standard 2.0
- No dependencies.
.NET 5.0
- No dependencies.
.NET Standard 1.3
- System.Net.WebSockets (>= 4.3.0)
- System.Net.Security (>= 4.3.2)
- NETStandard.Library (>= 1.6.1)
- System.Net.WebSockets.Client (>= 4.3.2)
.NET Framework 4.6.1
- No dependencies.
| Version | Downloads | Last updated |
|---|---|---|
| 5.1.0.1559 | 4 | 2026/4/9 |
| 5.0.1.1416 | 3 | 2025/8/1 |
| 5.0.0.1405 | 2 | 2026/4/14 |
| 5.0.0.1214-RC | 3 | 2026/4/9 |
| 4.3.7.1207 | 5 | 2025/8/1 |
| 4.3.6.1152 | 3 | 2026/4/14 |
| 4.3.5.1141 | 3 | 2026/4/9 |
| 4.3.4.1084 | 3 | 2026/4/14 |
| 4.3.3.952 | 4 | 2026/4/11 |
| 4.3.2.930 | 3 | 2026/4/11 |
| 4.3.1.873 | 3 | 2026/4/11 |
| 4.3.0.858 | 4 | 2026/4/11 |
| 4.2.1.781 | 2 | 2026/4/14 |
| 4.2.0.706 | 1 | 2026/4/18 |
| 4.1.4.563 | 2 | 2026/4/11 |
| 4.1.3.436 | 4 | 2026/4/10 |
| 4.1.2.350 | 2 | 2026/4/14 |
| 4.1.1.318 | 2 | 2026/4/10 |
| 4.1.0.247 | 3 | 2026/4/14 |
| 4.0.2.221 | 3 | 2026/4/11 |
| 4.0.1.184 | 2 | 2026/4/11 |
| 4.0.0.167 | 4 | 2026/4/14 |
| 3.1.2 | 4 | 2026/4/10 |
| 3.1.1 | 4 | 2026/4/10 |
| 3.1.0 | 3 | 2026/4/10 |
| 3.0.16 | 4 | 2026/4/11 |
| 3.0.15 | 4 | 2026/4/11 |
| 3.0.15-rc2 | 2 | 2026/4/11 |
| 3.0.15-rc1 | 4 | 2026/4/11 |
| 3.0.14 | 4 | 2026/4/11 |
| 3.0.14-rc8 | 3 | 2026/4/12 |
| 3.0.14-rc7 | 3 | 2026/4/12 |
| 3.0.14-rc6 | 2 | 2026/4/12 |
| 3.0.14-rc5 | 3 | 2026/4/12 |
| 3.0.14-rc4 | 2 | 2026/4/11 |
| 3.0.14-rc3 | 2 | 2026/4/12 |
| 3.0.14-rc2 | 4 | 2026/4/11 |
| 3.0.14-rc1 | 2 | 2026/4/11 |
| 3.0.13 | 1 | 2026/4/14 |
| 3.0.13-rc2 | 3 | 2026/4/12 |
| 3.0.13-rc1 | 3 | 2026/4/11 |
| 3.0.12 | 3 | 2026/4/11 |
| 3.0.12-rc2 | 4 | 2026/4/11 |
| 3.0.12-rc1 | 3 | 2026/4/12 |
| 3.0.11 | 2 | 2026/4/14 |
| 3.0.10 | 3 | 2026/4/14 |
| 3.0.10-rc2 | 4 | 2026/4/11 |
| 3.0.10-rc1 | 4 | 2026/4/11 |
| 3.0.9 | 4 | 2026/4/10 |
| 3.0.9-rc2 | 3 | 2026/4/14 |
| 3.0.9-rc1 | 4 | 2026/4/14 |
| 3.0.8 | 4 | 2026/4/10 |
| 3.0.7 | 5 | 2026/4/10 |
| 3.0.7-rc2 | 4 | 2026/4/14 |
| 3.0.7-rc1 | 4 | 2026/4/14 |
| 3.0.6 | 5 | 2026/4/10 |
| 3.0.6-beta1 | 4 | 2026/4/9 |
| 3.0.6-alpha1 | 2 | 2026/4/14 |
| 3.0.5 | 2 | 2026/4/10 |
| 3.0.4 | 3 | 2026/4/10 |
| 3.0.3 | 3 | 2026/4/10 |
| 3.0.3-rc3 | 2 | 2026/4/14 |
| 3.0.3-rc2 | 2 | 2026/4/14 |
| 3.0.3-rc1 | 4 | 2026/4/14 |
| 3.0.2 | 4 | 2026/4/10 |
| 3.0.2-rc1 | 5 | 2026/4/14 |
| 3.0.1 | 3 | 2026/4/10 |
| 3.0.0 | 4 | 2026/4/9 |
| 3.0.0-rc3 | 4 | 2026/4/14 |
| 3.0.0-rc2 | 5 | 2026/4/14 |
| 3.0.0-rc1 | 1 | 2026/4/14 |
| 3.0.0-beta1 | 3 | 2026/4/14 |
| 3.0.0-alpha3 | 3 | 2026/4/14 |
| 3.0.0-alpha2 | 3 | 2026/4/14 |
| 3.0.0-alpha1 | 4 | 2026/4/14 |
| 2.8.5 | 3 | 2026/4/10 |
| 2.8.5-rc5 | 2 | 2026/4/14 |
| 2.8.5-rc4 | 4 | 2026/4/14 |
| 2.8.5-rc3 | 3 | 2026/4/14 |
| 2.8.5-rc2 | 2 | 2026/4/14 |
| 2.8.5-rc1 | 4 | 2026/4/14 |
| 2.8.4 | 4 | 2026/4/10 |
| 2.8.4-rc2 | 4 | 2026/4/14 |
| 2.8.4-rc1 | 3 | 2026/4/14 |
| 2.8.3 | 3 | 2026/4/10 |
| 2.8.2 | 3 | 2026/4/10 |
| 2.8.2-rc1 | 4 | 2026/4/14 |
| 2.8.1 | 4 | 2026/4/10 |
| 2.8.1-rc1 | 3 | 2026/4/14 |
| 2.8.0 | 3 | 2026/4/10 |
| 2.8.0-rc6 | 3 | 2026/4/14 |
| 2.8.0-rc5 | 4 | 2026/4/14 |
| 2.8.0-rc4 | 2 | 2026/4/14 |
| 2.8.0-rc3 | 2 | 2026/4/14 |
| 2.8.0-rc2 | 3 | 2026/4/14 |
| 2.8.0-rc1 | 4 | 2026/4/14 |
| 2.8.0-beta1 | 4 | 2026/4/9 |
| 2.8.0-alpha5 | 3 | 2026/4/14 |
| 2.8.0-alpha4 | 3 | 2026/4/14 |
| 2.8.0-alpha3 | 2 | 2026/4/14 |
| 2.8.0-alpha2 | 3 | 2026/4/14 |
| 2.8.0-alpha1 | 3 | 2026/4/16 |
| 2.7.5 | 4 | 2026/4/10 |
| 2.7.5-rc2 | 3 | 2026/4/14 |
| 2.7.5-rc1 | 3 | 2026/4/14 |
| 2.7.4 | 3 | 2026/4/10 |
| 2.7.3 | 3 | 2026/4/10 |
| 2.7.3-rc3 | 2 | 2026/4/14 |
| 2.7.3-rc2 | 3 | 2026/4/14 |
| 2.7.3-rc1 | 3 | 2026/4/14 |
| 2.7.2 | 5 | 2026/4/10 |
| 2.7.1 | 4 | 2026/4/10 |
| 2.7.1-rc1 | 3 | 2026/4/14 |
| 2.7.0 | 3 | 2026/4/10 |
| 2.7.0-rc1 | 4 | 2026/4/14 |
| 2.6.0 | 3 | 2026/4/10 |
| 2.6.0-rc2 | 5 | 2026/4/14 |
| 2.6.0-rc1 | 3 | 2026/4/14 |
| 2.5.3 | 3 | 2026/4/10 |
| 2.5.3-rc1 | 3 | 2026/4/14 |
| 2.5.2 | 3 | 2026/4/10 |
| 2.5.2-rc1 | 4 | 2026/4/14 |
| 2.5.1 | 4 | 2026/4/10 |
| 2.5.0 | 4 | 2026/4/10 |
| 2.4.0 | 3 | 2026/4/10 |
| 2.3.1 | 2 | 2026/4/10 |
| 2.3.0 | 3 | 2026/4/10 |
| 2.2.1 | 5 | 2026/4/10 |
| 2.2.0 | 4 | 2026/4/10 |
| 2.1.5.1 | 4 | 2026/4/14 |
| 2.1.5 | 5 | 2026/4/10 |
| 2.1.4 | 2 | 2026/4/10 |
| 2.1.3 | 5 | 2026/4/10 |
| 2.1.2 | 3 | 2026/4/10 |
| 2.1.1 | 3 | 2026/4/10 |