Release Notes 15.2.1

Version 15.2.1 contains the following fixes:
– We fixed an issue where the app would crash if the back button was pressed while still recording a voice and then start a voice-over or a quick pencast.
– We fixed an issue where pausing the voice recording of a quick pencast, then adding a slide, and then continue the voice recording, would result in a crash.
– We fixed an issue where pressing the back button when playing a quick pencast, the audio playback wouldn’t stop.