This service release was released soon after version 10, on July 24, 2013, to address the following:
In the generate loads window, when you pressed on the Delete all generated loads, Delete all and regenerate or Generate loads on selected levels , the previously generated seismic loads were not deleted. This resulted in multiple copies of the seismic loads being created depending on how many times the buttons were pressed, which was causing the accumulated seismic loads and forces to be too large.
The checkboxes to enable/disable wind and seismic load generation in the generate loads window were not visible, unless you clicked on the area where the checkboxes usually appear. This has been corrected.