V0.41 still as latest at 'mailinabox.email'

The way that always works for me is:

  1. Upgrade to v0.30
git clone -b v0.30 https://github.com/mail-in-a-box/mailinabox.git
cd mailinabox
git checkout
setup/start.sh
  1. Migrate to v0.40 over a fresh up-to-date Ubuntu 18.04 LTS server
git clone -b v0.40 https://github.com/mail-in-a-box/mailinabox.git
cd mailinabox
git checkout
setup/start.sh

Restore the latest v0.30 backup over this step.

  1. Finally upgrade to v0.42b
git clone -b v0.42b https://github.com/mail-in-a-box/mailinabox.git
cd mailinabox
git checkout
setup/start.sh