What is "suspicious plugins behavior" and how to fix it?

[2003VB12]

In the new update I found this exception that I didn't see before:
2019.05.15 17:04:13.032 19.5.15.2 suspicious plugins behavior in plugin file: ''<Turbohud Directory>\Plugins\JarJar\InventoryAndStashPlugin.cs': possibly trying to use System.Diagnostics.
2019.05.15 17:04:13.036 19.5.15.2 suspicious plugins behavior in plugin file: ''<Turbohud Directory>\Plugins\Resu\ItemPerfectionPlugin.cs': possibly trying to use System.Diagnostics.
What is this and how do we fix it? Should we just wait for the plugin creators to update their plugins accordingly?

[AElder]

exceptions
2019.05.16 08:33:03.316 19.5.15.2 suspicious plugins behavior in plugin file: 'D:\games\turbohud\TurboHUD\Plugins\James\TurboHudGameEnvMonitorPlugin.cs': possibly trying to use System.Diagnostics.
2019.05.16 08:33:03.328 19.5.15.2 suspicious plugins behavior in plugin file: 'D:\games\turbohud\TurboHUD\Plugins\Resu\UrshisGiftPlugin.cs': possibly trying to use System.Diagnostics.

[RNN]

Look for an update for that plugin in the official post. The exception is that in the last version of the TH it prevents using certain "functions" to improve security, and the existing plugins using those functions must be modified to be compatible.