If you click the marks count in the top right (the lil' heart) there's a new page for gifting marks to other users. You can also see a new transaction history with marks - ones coming in and going out, with a new option in the privacy section of your settings page to make them all anonymous in others transaction histories.

In addition: marks are now permanent. You cannot unmark a pawprint once it is marked, to stop any issues occurring where you give away all your marks and then someone unmarks and leaves you in the negatives.

I rewrote how badges work almost entirely - now each one has a level (and I can set different icons for each level), meaning instead of having several badges that are related to eachother, for example 'Draw 10 Pawprints' and 'Draw 20 Pawprints', they're now all levels of the same badge. You will get a notification when a badge upgrades and the XP as well, giving you some extra XP in return for losing the now deleted badges.

It's a lot easier for me to work with this way, and means you can always keep progressing the badges even if there aren't any more to get :3