The Changelog:

[Release 1.19-v1.2.0]:

 - Implemented optional server-sided bypass for signature verification, by converting player messages to system messages (thanks JFronny, #1);
 - Minor optimizations (once again thanks JFronny).

[Release 1.19-v1.1.0]:

 - Public keys are now prevented from being sent to server;
 - Client no longer requires mod to be present on server by default;
 - Implemented suppression of built-in telemetry.

[Release 1.19-v1.0.0]:

 - Initial release.