We're already protected by the rspec 4 upgrade with what we have. The extra >= 3.0.0 is just to specific the minimum version inside of the tilde we support. Creating the gem via gem build brings up warnings unless that is there.

Yes you are right about being protected against rspec 4. But doesn't this tilde versioning support 3.0.0? Thus making the >= redundant?

I was just going off what gem build said. Here is how it's complaining about activesupport

WARNING:  open-ended dependency on activesupport (>= 3.0.0) is not recommended
  if activesupport is semantically versioned, use:
    add_runtime_dependency 'activesupport', '~> 3.0', '>= 3.0.0'

I removed the >= 3.0.0 from the rspec line and it's not complaining any more. We can merge once the build passes.

Handled this locally. Thanks!