This release fixes a rather embarrassing bug; sending breaks didn't work right in some circumstances. This happened because I had no way to receive breaks and know if they happened. I have added receiving breaks in the gensio library, version 2.8.12, and have added tests to make sure that breaks are actually working.
As part of this, you can now also receive breaks and parity errors through the the linestate interface on telnet rfc2217.
You should upgrade, and upgrade gensio, too. This should compile and work against old version of gensio, but the tests (well, the new break related ones) will not work.