"The brand new Return of the Patriarch Content Pack for KILLING FLOOR 2 includes the following:

New Boss – The Patriarch
2 New Maps – Farmhouse and Black Forest
1 New Perk – Gunslinger
1 New Playable Character - Oisten Jaegerhorn
Zed-conomy and Trading Floor Store
Other New Features including server welcome screen, various bug fixes and improvements, steam mod and map workshop added and much more! "

http://v1.steam.hlxgame.cc/games/232090/announcements/detail/755840017872545408

It brings along multiple microtransactions including:
-In-game item/skin store
-Paid curated workshop (there is also a free one)
-Cash key crate microeconomy (different quality and rarity of involved cosmetic items)
-Microtransactions are cosmetics only "AT LAUNCH". Possible weapons and/or STAT Boosts may be added in the future (according to Zedconomy FAQ)

I am in favor of TWI making this an economically succesful game but many of us believe they went too far with the cash key crate microeconomy in this full priced Early Access game. Moreover, we believe they purposefully failed to disclose the plan to include all these monetization models in order to avoid hurting their Early Access sales.

If you would like to join a group in protest, see the following:
http://v1.steam.hlxgame.cc/groups/TWINOMICROTRANSACTIONS
The main goal is to get TWI to reconsider the microtransaction model, in particular removing the cash key crate RNG microeconomy.

Say NO to them.
If you want to support the cause, please join this group:

http://v1.steam.hlxgame.cc/groups/TWINOMICROTRANSACTIONS

WWAUT:
http://forums.tripwireinteractive.com/showthread.php?t=114231

Go to your Steam library
Right click on "Killing Floor 2" game
Select "Properties"
Select "Betas" tab
Select "Preview Beta 8.15"


***I sincerely apologize for the earlier slightly premature post, but I had a KF2 update as a result of upgrading to the deluxe version.

http://v1.steam.hlxgame.cc/app/232090/discussions/0/528398719812698564/

http://forums.tripwireinteractive.com/showthread.php?t=111523

TLDR: Opt in Beta ETA probably early next week.

BOOM!