I purchased the source library for the first time about 18 years ago. It was (for the time) fairly good, doing most of the stuff I wanted to do with images. Last year I purchased the latest source library again, hoping that it would fix some of the bugs I had found in the original source, and didn't have the time to fix myself. The new source had all of the old bugs intact, and had acquired some new ones. I have now switched back to the 18 y/o source, since it is (although buggy) still better than the new source.