v2.1.5.1

• [Server] Fix wrong QoS level handling

v2.1.5.0

• [MqttServer] Added support for publishing application messages
• [Core] Fixed QoS level 2 handling
• [Core] Performance optimizations
• [MqttClient/MqttServer] Errors while handline application messages are now catched and traced
• [MqttClient/MqttServer] Added interfaces

v2.1.4.0

• [.NET Standard] Added support for .NET Standard 1.3 (Thanks to 1iveowl)
• [Server] Added an even which allows processing of all received messages from the clients
• [Server] Fixed an issue when stopping the server

v2.1.3.0

• [Core] Any exception while accessing the underlying data source is now rethrown as "MqttCommunicationException".
• [Core] Extended exception information when an invalid packet type is received.
• [Server] Added TLS 1.2 support (but not for UWP) (thanks to Zazzmatazz)
• [Client] Added TLS 1.2 support (thanks to Zazzmatazz)
• [Core] Optimized async task management
• [Nuget] Fixed x64 files

v2.1.2.0

• [Server] Added support for complex client IDs.
• [Server] Fixed an issue with not correctly removed old client sessions.
• [Server] Several minor performance improvements.
• [Server] An existing client session is no longer closed if a new client connection is invalid.
• [Client] Added support for sending "CleanSession" flag.

v2.1.1.0

• Performance optimizations

v2.1.0.4

• Added MQTT server.