Version v4.2 is in theory the same as v4.1 except for adding the 2020 emissions.
However, due to some recoding in how the temporal profiles were applied, the annual totals are slightly different.
Version v4.2-R1.1 This version is based on CAMS-GLOB-ANT v4.2 where the MEIC v1.3 emissions have been replaced in China (everywhere outside of China is identical to v4.2. It includes the years 2008-2016.