Bump to v1.19.0, update changelog.

Author: kring

CHANGES.md

@@ -1,12 +1,14 @@
 # Change Log
 
-## ? - ?
+## v1.19.0 - 2025-11-03
 
 ##### Additions :tada:
 
 - Added `CesiumGoogleMapTilesRasterOverlay` to stream imagery from Google Maps.
-- Added `assetOptions` to `CesiumIonRasterOverlay` to pass JSON-string options to Cesium ion as it accesses an asset.
 - Added `CesiumAzureMapsRasterOverlay` to stream imagery from Microsoft Azure.
+- Added `assetOptions` to `CesiumIonRasterOverlay` to pass JSON-string options to Cesium ion as it accesses an asset.
+
+In addition to the above, this release updates [cesium-native](https://github.com/CesiumGS/cesium-native) from v0.52.1 to v0.53.0. See the [changelog](https://github.com/CesiumGS/cesium-native/blob/main/CHANGES.md) for a complete list of changes in cesium-native.
 
 ## v1.18.1 - 2025-10-01
 

native~/extern/cesium-native

@@ -1,6 +1,6 @@
 {
   "name": "com.cesium.unity",
-  "version": "1.18.1",
+  "version": "1.19.0",
   "displayName": "Cesium for Unity",
   "description": "Cesium for Unity brings the 3D geospatial ecosystem to Unity. By combining a high-accuracy full-scale WGS84 globe, open APIs and open standards for spatial indexing such as 3D Tiles, and cloud-based real-world content from [Cesium ion](https://cesium.com/cesium-ion) with Unity, this plugin enables 3D geospatial workflows and applications in Unity.",
   "license": "Apache-2.0",