An Anonymous Coward writes:
MP3 decoding was already free and got recently included in Fedora. But now, encoding is also free according to Fraunhofer Institute for Integrated Circuits IIS: "On April 23, 2017, Technicolor's mp3 licensing program for certain mp3 related patents and software of Technicolor and Fraunhofer IIS has been terminated." The Wikipedia MP3 article confirms that.
So, do you still use an MP3 library or have you switched to another format or means of listening to music such as (spying built-in) streaming services?
Another good news, the last patents of Dolby AC3 have also expired in March. See ac3freedomday on archive.org [archive.org].
Imagine how technical innovation would suffer if patents lasted as long as copyrights? Like science and technology, the arts are suffering far worse from copyright than tech is from patents. So don't talk too loud about patent length, the bastards might just triple it.