I have <kuid2:61392:4000:32> Common data library as built-in in TRS19 SP5 Platinum and <kuid2:61392:4050:67> Common data library V3 (TRS19 SP4 and later) installed from DLS. As far as I know it hasn't caused any problems. They are all authored by pguy, and the description just says "Common data to include in other assets". It looks like :32 was the last version :4000 without a version number, uploaded 31-DEC-2016.
The oldest version of 4050 V2 is an upload from 17-FEB-2017. There are a lot of unknown versions, but V2 appears to go up to :60 on 08-May-2021
4050 V3 started with :61 on 14-NOV-2021. Everything now lists as obsolete except V3 :67.