update changelog

docs/pages/resources/changelog.md

@@ -17,6 +17,7 @@ New versions of Shoelace are released as-needed and generally occur when a criti
 - Added tests for `<sl-qr-code>` [#1416]
 - Added support for pressing [[Space]] to select/toggle selected `<sl-menu-item>` elements [#1429]
 - Added support for virtual elements in `<sl-popup>` [#1449]
+- Added the `spinner` part to `<sl-button>` [#1460]
 - Fixed a bug in focus trapping of modal elements like `<sl-dialog>`. We now manually handle focus ordering as well as added `offsetParent()` check for tabbable boundaries in Safari. Test cases added for `<sl-dialog>` inside a shadowRoot [#1403]
 - Fixed a bug in `valueAsDate` on `<sl-input>` where it would always set `type="date"` for the underlying `<input>` element. It now falls back to the native browser implementation for the in-memory input. This may cause unexpected behavior if you're using `valueAsDate` on any input elements that aren't `type="date"`. [#1399]
 - Fixed a bug in `<sl-qr-code>` where the `background` attribute was never passed to the QR code [#1416]