Does backwards compatibility stifle innovation and progress?

Upon beginning my new job, I’ve been thrown head-first into the world of Internet Telephony security, a sector that I’ve not really paid much attention to, much less followed. I’m currently in the process of getting acquainted with all of the various protocols and technologies involved, and in doing so I’ve signed up to the VoIPSec mailing list. After following the current discussion threads there for a few weeks, I [...]