It would likely make sense to start locking deployer versions but I don't really use that much anymore. This is largely being used in GitLab CI builds where having the Laravel toolset makes things a little easier. If I start using deployer more heavily, I may start binding to specific major versions to make things easier.
Now that v7.2 is available (decent writeup https://kinsta.com/blog/php-7-2/), we should have a version building from 7.2 now.
It would likely make sense to start locking deployer versions but I don't really use that much anymore. This is largely being used in GitLab CI builds where having the Laravel toolset makes things a little easier. If I start using deployer more heavily, I may start binding to specific major versions to make things easier.