At Contentful, they believe that API-first products are a significant evolution in how developers build digital experiences, and have made their GraphQL API available to all pricing tiers to take advantage of serverless architectures and improve data querying. They've introduced new features such as the locale argument on single entity and collection fields, allowing for more powerful querying of localized content, as well as an allowedLocales argument for reference fields, making it easier to query entries that include empty or specific reference fields. These changes aim to simplify and improve the querying process for developers, especially in scenarios involving localization and complex data structures.