Had a look through and looks like the currency was added on Fri 09 Dec 2022 10:04:52 UTC 
This thread was added on December 12, 2022, with posts from FatsharkJulia.
Warhammer: Vermintide 2 Dev Tracker
This thread was added on December 12, 2022, with posts from FatsharkJulia.
Had a look through and looks like the currency was added on Fri 09 Dec 2022 10:04:52 UTC