In the past, you had to exit one vagrant and get into another if you wanted to work on a different site. It was disruptive to your workflow. Mercury Vagrant (HGV) 1.3, the latest version, changes that. In version 1.3, which is available now, we’ve added support for running multiple sites with one vagrant. That means an agency working on 10 sites simultaneously no longer has to have 10 vagrants running.
This update is part of WP Engine Labs’ promise to continue to develop and contribute to the open source community with Mercury Vagrant (HGV). Version 1.3 includes some of the most frequently requested features and enhancements that make HGV a truly valuable development tool.
Mercury Vagrant 1.3 also gives you the ability to use custom domains in addition to the default domains. And we’ve continued to fix bugs related to vagrant provisioning and importing SQL files; added enhancements for easier debugging; and included support for PHP_CodeSniffer and for Parallels. We’ve also added plenty more documentation.
If you already have HGV, all you need to do is follow the update instructions to start using version 1.3 immediately.
If there are features you would like to see or if you encounter any issues, please reach out to us via GitHub.
For more info about Mercury, click here!
For more info about HGV, click here!
Also, be sure to check out our Support Garage article for a technical deep-dive into developing with HGV.

Thanks! When HGV was first released I quickly jumped at trying it out but being unable to run multiple sites on a single VM kept me from being able to really use it day to day. Very excited to give this another try.