Farmers like Karl have learnt a more efficient sowing technique. Each small patch of grain in the fields is planted closer together, so it will slow you down when you walk over that patch, but you can walk more easily between grain rows than before. After you harvested all your grain, you'd take it to Jenny to be milled. Do you sometimes forget that you left an order with her, or for how much? Well, now you can use /listproducers to be reminded of all your orders you placed with Jenny and other workers who cast, make and bake for you. You may use that to remember to collect some sandwiches you made with Leander, for Phalk. The dwarf guardian is hungry at his station in Semos mines and would appreciate some food and drink.
Stendhal 0.85 has some changes you'll notice as you start the client, too. There is a new wooden panel theme and now it is used for all the parts of the Stendhal client including the buttons on the first screen. When you login to your account you'll notice a dialog with your character, you need to click on that to login. If you have more than one account, you can merge them, so that when you login you can choose between your characters. Please read https://stendhalgame.org/wiki/Stendhal_Account_Merging for more details. This is optional, it does not affect gameplay, and you can still play more than one character at the same time.