Add React deferred fragment suspense - #3888
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🦋 Changeset detectedLatest commit: cdacbab The changes in this PR will be included in the next version bump. This PR includes changesets to release 3 packages
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Move the framework-agnostic fragment-masking and deferred-fragment logic behind React's BETA useFragment hook into @urql/core so other bindings can reuse it, and add a BETA useFragment hook to @urql/preact built on it. - @urql/core: new BETA exports maskFragment, updateDeferredResult, makeDeferredState, resolveDeferredState, isDeferredPromise, getDeferredCacheForClient + the generic makeCache factory and selection AST helpers. The operations$ subscription only attaches when a binding requests a cache, so core stays side-effect-free at import. - urql (React): consume the moved helpers from @urql/core; delete the local selection.ts/defer.ts; reduce cache.ts to thin makeCache wrappers. No behaviour change. - @urql/preact: new BETA useFragment hook mirroring React, with updateDeferredResult wired into the suspense query stream. Adds core unit tests for selection/defer/maskFragment and Preact useFragment tests. Existing react-urql useFragment tests pass unchanged. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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Summary
useFragmenthook for masking fragment data@deferselections inuseQueryRefs #3628.