The main focus of this update was to add command windows that allow a player to give artillery/air support/mine laying orders without resorting to using the keyboard. These also provide flexibility by allowing to set the start time or length of a fire mission and start time of an air mission. The command windows also let the player set unit actions on coming under effective enemy fire.
Other changes include an optional start point for the Grand Campaign and a scatter of multiple rocket launcher fire.
For a full list of changes, please visit https://decisiveactiongames.com/News/Updates/
Source: Steam Community (opens in a new tab)