You always know which direction is north, and you have advantage on any Wisdom (Survival) check you make to navigate or track. Whether descended from a celestial being or infused with heavenly power, aasimar are mortals who carry a spark of the Upper Planes within their souls.

Until the start of your next turn, the first time the creature you help hits a target with an attack roll, that target has disadvantage on the next attack roll it makes within the next minute. From a young age, a protector aasimar receives advice and directives that urge to stand against evil. Minotaurs often carve their horns to sharpen their edges, etch symbols of power into them, or sheathe them in bronze to prevent them from shattering during battle. One bit brought up in the Dev Update that isn't presented here is that, with the release of Monsters of the Multiverse, they will stop selling Volo's Guide to Monsters and Mordenkainen's Tome of Foes.You can use this trait a number of times equal to your proficiency bonus, and you regain all expended uses you finish a long rest.

If you own the old content and purchase the new content, yes,you will have two different versions of official content.If you're playing in a campaign, or are running a campaign, it's definitely worth taking a look to see if there's anything new. Interestingly enough none of these races are from the Player Handbook, the lion's share of these player races were ones that appeared in the Elemental Evil Player's Companion and Volo's Guide to Monsters with a few more scattered from other sources. I'm hoping there will be a nice clean way to avoid duplications perhaps through a button that uses most up to date content?