My advice is stronger that that - it is "a really bad idea" to merge unofficial files with the official library. Updated files may incorrectly change a part orientation or origin, may refer to missing subparts, and may have other errors that could break the rendering of an existing model. This is why we have a rigourous review process on the Parts Tracker, and checks that each release forms a coherent package.
I appreciate that users may want to use unofficial parts before they are released, but the disclaimer is as valid as it has always been: These are unofficial parts. They may be incomplete, or inaccurate, and it is possible that when they are officially released they may be changed in ways that could mess up any model you use them in.
If you want to see parts get into the official releases more quickly, them please consider signing up as a Reviewer. The current throughput is constrained by the limited time and tremendous efforts of very few individuals.
Chris
I appreciate that users may want to use unofficial parts before they are released, but the disclaimer is as valid as it has always been: These are unofficial parts. They may be incomplete, or inaccurate, and it is possible that when they are officially released they may be changed in ways that could mess up any model you use them in.
If you want to see parts get into the official releases more quickly, them please consider signing up as a Reviewer. The current throughput is constrained by the limited time and tremendous efforts of very few individuals.
Chris
Chris (LDraw Parts Library Admin)