vagrant/website/docs/source/v2/vagrantfile/vagrant_version.html.md

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---
page_title: "Minimum Vagrant Version - Vagrantfile"
sidebar_current: "vagrantfile-vagrantversion"
---
# Minimum Vagrant Version
A set of Vagrant version requirements can be specified in the Vagrantfile
to enforce that people use a specific version of Vagrant with a Vagrantfile.
This can help with compatibility issues that may otherwise arise from using
a too old or too new Vagrant version with a Vagrantfile.
Vagrant version requirements should be specified at the top of a Vagrantfile
with the `Vagrant.require_version` helper:
```ruby
Vagrant.require_version ">= 1.3.5"
```
In the case above, the Vagrantfile will only load if the version loading it
is Vagrant 1.3.5 or greater.
Multiple requirements can be specified as well:
```ruby
Vagrant.require_version ">= 1.3.5", "< 1.4.0"
```