The main focus of this update was adding the progression rewards system. There is a free tier which rewards you Gold, Gems, Random Cards, and Booster Packs when you level up. Experience Points (XP) are earned from battles and quests.
A Gem tier rewards you a bundle of cosmetics at a great value as you level up. Level 95 and 100 of the Gem tier reward the Founder's Deck Box and Animated Card Back which are exclusive to this season. All other cosmetics from the Gem tier will be available for gold the following season.
Our current projection is that seasons will last around 4 months and will launch alongside an expansion of new cards. This first "Founder" season while we are in early access does not have a projected end date and will be used to collect critical player feedback.

Version 0.12 release notes:
Added a progression rewards system
Added knight, rogue, and wizard outfits
Added table pets - these are pets you can set during deck editing and will spawn on the table during battles with that deck
Added Dutiful Servant flying pets
Increased the size of the flying bat pets, and added a green one
Added axe props
Added D12 props
Added a weekly 40 quest tier
You now get 10 gold for losing to the AI instead of 12
Updated card back logos to all use the core set icon
Fixed players sometimes getting frozen at spawn point
Fixed UI not facing the streamer camera
What we are working on next:
Next up we will be working on a new faction of cards, the Plundering Guild! We intend to release this entire faction in a single update for you all, so our next update will take longer to get out than usual. We are shooting for a development time-frame of two months, but this is of course subject to change. Stay tuned and keep an eye on our twitter account for teasers as we get closer to the faction's release date!
Don't forget to join our Discord server!
