GitHub now supports using the -latest image label on your larger hosted runners. With the -latest label developers can be sure that their workflows use the latest available GA image in GitHub Actions.
latestimagelabel

In general the -latest tag is used for the latest OS image version that is GA. You can find more information about the different image versions in our runner-images repository.

Interested in learning more about larger hosted runners? Read the announcement here or sign up for the beta here.