5.3.78
     *  Multithreading can now speed up pitch analysis by a factor of 4
       or so, depending on the number of cores in your processor.
     *  Linux: can now open and save Photo objects (from PNG files) and
       use [1]Insert picture from file....
     *  Open WAV files that are in the "extensible" format (previously
       "unsupported format -2").
     *  Windows: support for dropping more than one file on the Praat
       icon.
     *  Scripting: can now use the editor command with an object's ID
       instead of only with its name.
     *  Windows: removed a bug that sometimes disallowed saving more than
       one JPEG file.
     *  Linux audio: created a workaround that reduces the chances of a
       freeze that is due to a potential deadlock in the collaboration
       between Alsa and PulseAudio that can occur when the playback of a
       sound is cancelled.

   1. Insert_picture_from_file___.html