Much has happened since we last did it, so add new versions and also add a template of testing against older astropy with numpy versions not supported any more by the latest release, e.g.
NUMPY_VERSION=1.10 ASTROPY_VERSION=3.0
Once done, notify people on astropy-dev and/or open PRs/issues in repos using settings that are clearly not compatible any more.
Much has happened since we last did it, so add new versions and also add a template of testing against older astropy with numpy versions not supported any more by the latest release, e.g.
NUMPY_VERSION=1.10 ASTROPY_VERSION=3.0
Once done, notify people on astropy-dev and/or open PRs/issues in repos using settings that are clearly not compatible any more.