IANAL but reading https://www.copyright.gov/circs/circ03.pdf it looks like you only apply a date when you create material. i.e. that the original copyright date on these files does not need to change until you add new commits in 2021 and want to be explicit that that code is copyrighted by that entity. I don't see 2021 commits on these files.
IANAL but reading https://www.copyright.gov/circs/circ03.pdf it looks like you only apply a date when you create material. i.e. that the original copyright date on these files does not need to change until you add new commits in 2021 and want to be explicit that that code is copyrighted by that entity. I don't see 2021 commits on these files.