Serial Framework 7.4.2.0 has been released

[Mike Petrichenko]

What's new in this release:

* .NET Edition: exception classes have been updated to raise exceptions with messages;
* C++ Edition: Serial Framework exceptions now inherits from std::exception to provide access to the What() method;
* C++ Edition: exception classes have been updated to raise exceptions with messages.

https://www.btframework.com/serialframework.htm