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Upgrading frontend dependencies with confidence

· Leitura de 9 minutos
Sébastien Lorber
Docusaurus maintainer, This Week In React editor

Frontend developers often need to upgrade npm dependencies, but those upgrades can feel scary and lead to subtle UI side effects not caught by your regular test suite.

Upgrading Docusaurus is a good example: without reviewing all the pages one by one, it's hard to be sure there's no visual regression. Docusaurus v3 is around the corner (currently in beta), and we would like to help you do this upgrade with confidence.

This article introduces a visual regression testing workflow based on GitHub Actions, Playwright, and Argos. It is not directly coupled to Docusaurus or React, and can be adapted to work with other frontend applications and frameworks.

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