From Fatshark: “Welcome to Season 2 and 2.1.0 on PC! This update brings new exciting things to Warhammer: Vermintide 2, and we are thrilled for you to delve into the first chapter of the Curse of Drachenfels, and explore what Lohners Emporium of Wonders can offer. This update is free for all owners of Vermintide 2.
The full patch notes for 2.1.0 can be found at the end of this page, and if you are curious about the changes from the Season 2 Beta to 2.1.0 you can find it described with patch notes and comments from a Game Designer further down.”
Source: N4G PC Warhammer: Vermintide 2 Season 2 – Lohner's Emporium of Wonders – Patch Notes 2.0.1