Laravel Homestead, the official pre-packaged Vagrant box, just received a new update to the way it reprovisions the box. Previously, to add a new site you could either use the
serve shortcut from within the VM or add your new site to the yaml configuration file and then reprovision.
The problem with provisioning the box is that it would drop all your databases. This new feature prevents those from being dropped so you do not lose any data. Losing all the databases was a hassle if you use one Homestead box for all your local sites.
If you prefer the old style of dropping the databases you can run
destroy instead. That will wipe out the entire VM.
I am one of those that use one Homestead environment for everything and this is a welcome change.