The Phpversion task will check if your current php version is still supported.
The date of the php version that is checked, is the end of the security updates that can be found here.
It lives under the phpversion
namespace and has following configurable parameters:
# grumphp.yml
parameters:
tasks:
phpversion:
project: '7.0'
project
Default: null
Manually set a minimum version for your project.