The confusion here seems to stem from the different stages of release for the technologies involved. Let's break it down:
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Shadcn with React 19 and TailwindCSS 4: According to the official shadcn documentation, the combination of React 19 and TailwindCSS 4 is available in the canary release of their CLI. A canary release typically means it's a pre-release version intended for testing and feedback, not necessarily a stable release.
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Laravel React Starter Kit: The Laravel documentation mentions that their React starter kit is built with React 19, TailwindCSS 4, and shadcn/ui. This suggests that the Laravel team has opted to use the canary version of shadcn/ui in their starter kit, which is not uncommon for frameworks or starter kits that want to leverage the latest features and provide early access to new technologies.
In summary, the Laravel React Starter Kit is likely using the canary version of shadcn/ui, which means it includes the latest features but might not be as stable as a fully released version. If you're planning to use this setup in a production environment, it's important to be aware of potential instability and keep an eye on updates from the shadcn team for a stable release.
