MQTTnet 4.1.1.318
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] MQTT Packets being sent over web socket transport are now setting the web socket frame boundaries correctly (#1499).
* [Core] Add support for attaching and detaching events from different threads.
* [Core] Fixed a deadlock in _AsyncLock_ implementation (#1520).
* [Client] Keep alive mechanism now uses the configured timeout value from the options (thanks to @Stannieman, #1495).
* [Client] The _PingAsync_ will fallback to the timeout specified in the client options when the cancellation token cannot be cancelled.
* [Server] A DISCONNECT packet is no longer sent to MQTT clients < 5.0.0 (thanks to @logicaloud, #1506).
* [Server] Improved "take over" process handling.
.NET Framework 4.5.2
- No dependencies.
.NET Standard 2.1
- No dependencies.
.NET 6.0
- No dependencies.
.NET 5.0
- No dependencies.
.NET Core 3.1
- No dependencies.
UAP 10.0.10240
- Microsoft.NETCore.UniversalWindowsPlatform (>= 6.2.10)
.NET Standard 2.0
- 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 | 4 | 2025/8/1 |
| 5.0.0.1405 | 3 | 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 | 5 | 2026/4/11 |
| 4.3.2.930 | 3 | 2026/4/11 |
| 4.3.1.873 | 4 | 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 | 3 | 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 | 3 | 2026/4/12 |
| 3.0.14-rc5 | 3 | 2026/4/12 |
| 3.0.14-rc4 | 2 | 2026/4/11 |
| 3.0.14-rc3 | 3 | 2026/4/12 |
| 3.0.14-rc2 | 4 | 2026/4/11 |
| 3.0.14-rc1 | 3 | 2026/4/11 |
| 3.0.13 | 2 | 2026/4/14 |
| 3.0.13-rc2 | 3 | 2026/4/12 |
| 3.0.13-rc1 | 4 | 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 | 3 | 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 | 3 | 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 | 4 | 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 | 3 | 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 | 3 | 2026/4/14 |
| 2.8.0-alpha2 | 4 | 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 | 4 | 2026/4/10 |
| 2.7.3 | 4 | 2026/4/10 |
| 2.7.3-rc3 | 3 | 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 | 3 | 2026/4/10 |
| 2.3.0 | 4 | 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 |