feat(dam-app-base)!: upgrade to React 19 and Forma 36 v5 [EXT-00]#10510
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LGTM!
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BREAKING CHANGE: peer deps now require react/react-dom >=19; Forma 36 v5 and @emotion/css adopted.
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Thanks for upgrading the dam app base 🔥
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BREAKING CHANGE
Purpose
The modernization of enterprise frontend architectures is a critical imperative for maintaining security, performance, and developer velocity.
The current architectural state of
@contentful/dam-app-base, rooted in the React 16 era, relies on patterns such as synchronous rendering, legacy context APIs, and higher-order components (HOCs) that are now deprecated or fundamentally altered in React 19. Furthermore, the surrounding ecosystem has shifted dramatically: the Contentful App SDK has evolved to version 4.x , and the Forma 36 design system has undergone a complete rewrite from version 3 to version 5.Approach
Testing steps
Tested by installing in an example app locally:
Breaking Changes