@apollo/client

In TypeScript, all APIs that take DocumentNode parameters now may alternatively take TypeDocumentNode<Data, Variables>. This type has the same JavaScript representation but allows the APIs to infer the data and variable types instead of requiring you to specify types explicitly at the call site.

Bring back an improved form of heuristic fragment matching, by allowing possibleTypes to specify subtype regular expression strings, which count as matches if the written result object has all the fields expected for the fragment.

Allow options.nextFetchPolicy to be a function that takes the current FetchPolicy and returns a new (or the same) FetchPolicy, making nextFetchPolicy more suitable for global use in defaultOptions.watchQuery.

Implement useReactiveVar hook for consuming reactive variables in React components.