calc 2.12.7.1 -> 2.12.9.1
fetchmail 6.4.17 -> 6.4.18
tox 3.23.0 -> 4.0.0a2
tox 3.23.0 -> 4.0.0a3
tox 3.23.0 -> 4.0.0a4
tox 3.23.0 -> 4.0.0a5
tox 3.23.0 -> 4.0.0a6