Shadowlands patch 9.1.5 expanded the popular Soulshapes feature for members of the Night Fae Covenant by adding a new type called Crittershape, allowing you to roam a rested area as a squirrel, cat, or any of the other various small soulshapes we've seen NPCs in (I am particularly fond of the Saurid Crittershape myself).
World of Warcraft patch 9.1.5 added a lot of nice quality of life features to Shadowlands, from renown catchup to new character customizations to getting around the Maw faster.
Fans of character customization, rejoice!
The PTR for Shadowlands patch 9.1.5 is in full swing now!
When you choose a Covenant in Shadowlands, you are given extra abilities to use -- one class-based that typically increases throughput, and one universal ability that tends to be more about utility.