Svelte Sonner is a Svelte adaptation of Emil Kowalski's popular React toast library, Sonner. It offers an opinionated, accessible, and customizable toast notification system tailored for Svelte applications. With the release of v1.0.1, Svelte Sonner introduced compatibility with Svelte 5, incorporated Svelte runes and snippets, and achieved feature parity with the original React version. Notably, it supports custom components, promise-based toasts, and a headless mode for advanced customization. A dedicated documentation site is forthcoming.