Swapnil developed comprehensive developer-facing documentation for the Dyte Core SDK 2.x upgrade, focusing on both Android and iOS platforms within the dyte-io/docs repository. Leveraging Markdown and JavaScript, Swapnil authored detailed migration guides, outlined breaking changes, and clarified deprecations and error handling updates to streamline the upgrade process. The work included structural API documentation changes, such as the baseUrl-to-baseDomain rename and version labeling updates, as well as guidance for removing deprecated Chat APIs. Through consistent formatting, cross-linking, and a clear commit history, Swapnil ensured the documentation was thorough, easy to navigate, and reduced the need for post-release support.