When the year is included in an autonumber, include a setting to reset the autonumber seed value at the begining of every new year.
example: 2020-01000, 2020-01001, 2020-01002, ... 2021-01000, 2021-01001, ...
I would add to allow the reset based on year, month, or day. As a consultant I have customers consistently asking for auto numbers that reset based upon those thing. I typically have to write custom plugins to handle this which involves locking transaction to ensure the number are created correctly. Having the option to reset the seed based upon year, month, or day would be a huge benefit.