doc/libvlc/CHANGES-v3-to-v4.txt

   1 Breaking changes between libvlc 3 and libvlc 4:
   2 - libvlc_media_player_will_play() is removed (it is meaningless with the
   3   new player)
   4 - libvlc_media_player callbacks are called with the same (recursive)
   5   mutex as libvlc_media_player functions
   6 - libvlc_media_player_stop() is now asynchronous
   7 - libvlc_media_player_set_pause() and libvlc_media_player_set_media(), which
   8   could possibly stop, are now asynchronous too