In response, existing series have been revised, for the entire history, from 1995. You will need to modify any downstream processes to account for the change in magnitude.
For example, the description metadata for series VSQPOP0004UA.IPOL has changed thusly:
There are 20 rescaled concepts in the dataset (of the form VSQPOP?UA); geo coverage is the nation and all NUTS 2013 level 1, 2 and 3 areas (six, 16, 72).
See also