[arundelo]

Wikipedia says that MP3's last patent expired in the United States last month:

If only the known MP3 patents filed by December 1992 are considered, then MP3 decoding has been patent-free in the US since 22 September 2015 [...] If the longest-running patent mentioned in the aforementioned references is taken as a measure, then the MP3 technology became patent-free in the United States on 16 April 2017 [...].

https://en.wikipedia.org/wiki/MP3#Licensing.2C_ownership_and...

Wikipedia also says (unless I'm missing something) that all the MP3 patents have already expired everywhere else too. If this is true, then Fraunhofer is ending their licensing program just because they don't want to bother getting people to pay for something they can now legally have for free.