iiuc the recommended suffix for ogg vorbis audio files is .oga these days. However oggenc still creates .ogg by default. This should probably be changed.
Thanks for point this out. Where did you find the recommendation? Do you mean RFC 5334?
cc'ing monty. Monty, should oggenc create files with a .ogg or .oga suffix by default?
Vorbis files should continue to use .ogg. Other audio codecs encapsulated in Ogg should move to using .oga. Oggenc creating Ogg Vorbis files with .ogg is correct behavior.
Thanks for explanation! It does not look like a bug to me in that case...