Jan '26 Highlights: New API Playground Experience, Flexible Page Layouts and Precise Error Handling in SDK Code Samples

In February 2026, a series of significant improvements were made to developer portals to enhance accessibility, flexibility, and user experience. The API playground was redesigned into a drawer-based interface, allowing developers to keep documentation visible while testing endpoints, eliminating the need to scroll back and forth. Customizable layouts were introduced for content pages, offering three layout modes to better accommodate long-form tutorials and integration guides. Sidebar navigation now includes icons from the Lucide library for faster navigation. API recipe completion now features a celebratory modal with options for continued learning, and code samples for various SDK languages like PHP, TypeScript, Java, .NET, and Go now include typed error handling for more precise error management. Improvements also include better documentation for collected parameters in SDKs, presenting them as unified model references, and consistent enum representation across multiple SDKs. These changes aim to make the developer experience more intuitive and efficient.