Version 2.1.4 of libcec is now available and with this updated CEC library there is support for new vendor IDs and names, various other internal changes, and many bug-fixes.
The extensive details on the libcec 2.1 unstable changes can be found via its GitHub repository.
This open-source CEC library continues to be dual-licensed under GPLv2 for personal and open-source projects while commercially licensed for commercial solutions. One of the major users of libcec is XBMC. The Consumer Electronics Control (CEC) HDMI feature allows for up to 15 supported devices to be connected via HDMI and to communicate using a single remote control.
Those wishing to learn more about libCEC itself can check out the Pulse Eight project page.