Safari Technology Preview 163 is here!
- `leading-trim`
- CSS Masonry layout
- `currentcolor` with `color-mix()`
- `:buffering` and `:stalled` inside `:has()`
- Gamepad API `vibrationActuator`
- WASM `ref.as_non_null` and `struct.new_canon_default`
- default ARIA for custom elements
- `StorageManager.estimate()`
- Ed25519 keys to Web Crypto
- `WEBGL_provoking_vertex`
- `WEBGL_clip_cull_distance`
- `AudioSession` API

https://webkit.org/blog/13839/release-notes-for-safari-technology-preview-163/