The patch does the following fixes:
General
* Fixed an issue where maps would not appear in the Single Player vs. AI screen (China only).
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Fixed an issue where the Leagues & Ladders Friends page would stop displaying information if * a player had more than 100 ranked friends.
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Fixed a crash that would sometimes occur when players received an alert in-game while 3D portraits were turned on.
StarCraft II Editor
* Fixed a crash that could occur on Editor startup if players had improperly configured variables.
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Fixed an issue where the Editor would display incorrect cliff height on ramps facing directly N, S, E or W; this issue prevented proper unit vision in game.
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Fixed an issue where the pathing visualizer in the Terrain Editor would sometimes display incorrect pathing.