When concatenating a number of straight paths placed end-to-end, there’s often no need to keep the anchor points that once separated them. It’s also often worth simplifying the path just a little to reduce the number of anchor points. This is especially true if you plan to edit the path afterward. Now Concatenate for Adobe Illustrator CS6 and CC has been upgraded to version 16.1.5 with a setting for merging these straight segments. Even a very small value such as the default of 0.0001 (one 10,000th of a degree) will remove points when combining straight paths that were cut and rejoined. For the most hands-off handling of paths when concatenating, just enter 0 in the settings for curves and straights. This update is recommended for all users.