Unmet peer dependency - webpack@^4.0.0-beta.1

[stoicsquirrel]

• Operating System: macOS 10.13.1
• Node Version: 8.11.1
• NPM Version: 5.6.0
• webpack Version: 3.12.0
• webpack-dev-server Version: 3.1.4

• This is a bug
• This is a modification request

Code

Expected Behavior

yarn install should install without warning about not having met peer dependency webpack@^4.0.0-beta.1.

Actual Behavior

webpack-dev-server@3.1.4 patch version (in commit a02c083) increased the version required for webpack from ^2.2.0 || ^3.0.0 to ^4.0.0-beta.1. This was a change from version 3.1.3 to 3.1.4, and I believe it may have been done in error, because it was released in a patch version, and there doesn't seem to have been a functional reason in this commit to increase the requirement.

For Bugs; How can we reproduce the behavior?

Run yarn install and you will see the following:
warning " > webpack-dev-server@3.1.4" has unmet peer dependency "webpack@^4.0.0-beta.1".

[alexander-akait]

@stoicsquirrel PR welcome 👍