The current update makes it easier to get started and explains the difference between DLC and the main game. It also fixes minor bugs (like trees to walk through, problems with planting seeds, etc.) as well as spelling and grammar errors in the descriptions.
By the way, in the DLC, it's not summer anymore, but like in our real world, autumn has arrived.
Better game entry and autumn in the interactive menu
Source: Steam Community (opens in a new tab)