That's a valid concern, ---- It leaves us only with one option: * get rid of the deprecated Beta APIs (PR sent, thanks Cody!) * upgrade to 16.x We could: * get rid of APIs as we upgrade to newer Java * get rid of APIs we do use sparely and for no reason (e.g. just once or twice) (e.g. MapMaker) ---- Some of other APIs we use and are still @Beta in 16: 2x ByteStreams (@Beta, but Since Guava 1.0) 1x Files (@Beta, but Since Guava 1.0) 4x LoadingCache (@Beta, Since Guava 11.0) The last one is the only which is potentially fragile (we already had to refactor it once): https://github.com/richfaces/richfaces/commit/9f26b20e1850548f683fd406146...