We finally made it! Opus is now standardized by the IETF as RFC 6716 . See the Mozilla hacks post and the Xiph.Org press release for more details. Of course, feel free to help spread the word around.We're also releasing both version 1.0.0, which is the same code as the RFC, and version 1.0.1, which is a minor update on that code (mainly with the build system). As usual, you can get those from http://opus-codec.org/ Thanks to everyone who contributed by fixing bugs, reporting issues, implementing Opus support, testing, advocating, ... It was a lot of work, but it was worth it.