You can check out the full patch notes below. There's no word on when those will be resolved. There are some known issues, such as the profile section being inaccessible.

Online play should be more responsive, and the UI in online areas has been improved. In terms of changes, this patch adds an Observer mode improved compatibility with Windows 7, 8.1, and 10 better anti-cheat features and support for windowed fullscreen and windowed modes, which can be swapped between using Alt+Enter.

This move paves the way for the remastered edition of the game to launch later this year. Most significantly, this patch will make the game and the Brood War expansion a free download for everyone. It says this is needed the first time you open the client in order to successfully carry over saves and avoid any other issues. The update is scheduled to go live at 2 PM PT, and Blizzard notes that you should use the Run as Admin option when installing it. Original Story: Blizzard has released the patch notes for a new StarCraft update, which it says is the game's first in over eight years. Be sure to heed the warning below about using the Run as Admin option when updating your game. Update: The patch is now available, making StarCraft free on PC (download here) and Mac ( here).