Persistent baseline-browser-mapping outdated warning during next build

jacobparis · December 10, 2025, 9:47am

This comes from BrowsersList and is harmless, but the error message has been suppressed as of Next.js 16.0.6

More discussion here

github.com/web-platform-dx/baseline-browser-mapping

`baseline-browser-mapping` prevents reproducible builds.

opened 09:04PM - 19 Nov 25 UTC

closed 02:39PM - 30 Nov 25 UTC

alumni

**Is your feature request related to a problem? Please describe.** > If your ins…talled version of baseline-browser-mapping is greater than 2 months old, you will receive a console warning advising you to update to the latest version. This warning is blocking us to run CI pipelines on older builds. This violates the principle of [reproducible builds](https://en.wikipedia.org/wiki/Reproducible_builds) - we need to be able to reproduce any build from the past and have the exact same output each time. Besides that, it's also _really annoying_ to have to constantly update this package when all we care about is nodejs features which rarely change. **Describe the solution you'd like** Provide a way to opt out of (or better: opt into) this feature. **Describe alternatives you've considered** Difficult to find alternatives when Babel.js depends on this package. **Additional context** n/a

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Persistent baseline-browser-mapping outdated warning during next build

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