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

API documentation should not get in the way of developers exploring APIs. This month, we redesigned the API playground into a drawer-based experience that keeps your docs visible while developers test endpoints. We also shipped customizable layouts for custom content pages, sidebar icons, and several documentation quality improvements, in addition to typed error handling in code samples across five SDK languages.