Push notifications for when a new episode is released is not currently available on app version 4.0.0+. We're working hard to bring this back in a future app release.
In the meantime, you can find new episodes from the podcasts you follow from the For You tab on the homepage or within your Library.
We recommend keeping automatic app updates turned on for LiSTNR to receive all the new app releases.
Find out more about LiSTNR app version 4.