You can now use the Wix JavaScript SDK instead of Velo APIs for most functionality when developing sites or building apps with Blocks. This marks the beginning of a gradual transition from using Velo APIs to using the next generation SDK. You are encouraged to start using the SDK in all new and ongoing development projects.
SDK event handlers and service plugins are not yet supported for site development and Blocks. Additionally, data hooks and routers have not yet been implemented in the SDK. If you want to use the functionality of these APIs, continue to use the existing Velo APIs.