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Lessons Learned from a Fully Agentic Modernization of a React 16 App

Ville Komulainen Ville Komulainen
Thu
12
Mar
Future Frontend March 2026 Future Frontend Future Frontend

Modernizing a React 16 app usually requires a lot of manual work.

I tried to automate this process using AI agents. This talk covers my migration strategy, the different phases, and the tools I used. I will share the technical problems I faced and how I fixed them.

Finally, I speculate on the productivity gains vs manual approach.