Check out the newest enhancements to the Sketch Environment.
In the sketches for parts and assemblies, new options were added to allow you to filter sketch dimension termination, also known as 'snap' options. They include Endpoint, Midpoint, and Center options. This feature is designed to prevent inadvertent selection of incorrect points when dimensioning sketch objects.
By default, all options are enabled. After modifications, these changes are remembered across sessions.

The ability to ability to shift-click and copy multiple blocks from one .IPT is added in this release of Inventor.