Before the 1.0.1 update next to the playlists you were following there was a number of songs that were added/new.
I used to keep track of this so I easily knew that playlists were updated without checking my notifications one by one.
I follow quite a lot of playlists that are updated regularly and I can't easily keep track of it in the new update.
I found an image that showed how it looked in the old version. Check the attachment to see it.
Hello and thanks for the feedback!
Any news regarding this request will be announced in the original idea topic here:
https://community.spotify.com/t5/Spotify-Ideas/Bring-notification-number-next-to-playlists-back/idi-...
Please add your kudos and comments there, if you haven't already. 😉