The version 4.0.0 is not covered by your current version range.
Without accepting this pull request your project will work just like it did before. There might be a bunch of new features, fixes and perf improvements that the maintainers worked on for you though.
I recommend you look into these changes and try to get onto the latest version of npm-run-all.
Given that you have a decent test suite, a passing build is a strong indicator that you can take advantage of these changes by merging the proposed change into your project. Otherwise this branch is a great starting point for you to work on the update.
The new version differs by 15 commits .
Breaking: use NPM_EXECPATH to run tasks
Chore: remove unused setting in .eslintrc.json
New: --max-parallel option
Chore: remove read-pkg-up
Chore: update dependencies
Fix: the leaks of modifications to remove babel
Chore: upgrade nyc and mocha
Chore: stop using babel
Chore: remove polyfills
Chore: upgrade eslint and eslint-config
Breaking: drop supports for Node 0.x
Chore: rename .eslintrc → .eslintrc.json
Merge pull request #75 from nulltask/feature/colorize (fixes #73)
Change labels to be displayed in individual colors for each task
See the full diff.
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chore(package): update npm-run-all to version 4.0.0