Blackjack
+ Splitting can be enabled in the rules
Twenty-One
+ Bugfix: Dealer rotation every x rounds did not work
Rummy
+ Initial melds can consist of multiple sets (configurable)
+ Configurable: when players can start adding to other players' melds
+ Number of cards is configurable
+ Card score values are configurable
+ Additional values for the initial meld minimum are configurable
+ Undo button to correct the current move
+ Bugfixes discarding with right mouse button, jokers scoring
Doppelkopf (Double head)
+ Display indicating which player leads the round
+ Bugfix Autosave function

Note: Savegames from V1.5.4 and older are not compatible with V1.6.1+ and are stored in a separate folder
V1.6.7 Hotfix
+ Bugfix Twenty-One: If the dealer goes bankrupt, another player becomes the dealer
+ Twenty-One: Dealer AI improved
+ Bugfix Gin Rummy: Scoring for Ace, always 1 point
+ Bugfix Rummy: Display of round number in scorecard
+ Bugfix Rummy: Error "Rummy: Overflow Zugbuffer.next[..]"