src/vs/platform/extensionManagement/common/extensionGalleryService.ts/ExtensionGalleryService/getLastValidExtensionVersionFromProperties
class ExtensionGalleryService:	private getLastValidExtensionVersionFromProperties(extension: IRawGalleryExtension, versions: IRawGalleryExtensionVersion[]): IRawGalleryExtensionVersion | null {
		for (const version of versions) {
			const engine = getEngine(version);
			if (!engine) {
				return null;
			}
			if (isEngineValid(engine, this.productService.version, this.productService.date)) {
				return version;
			}
		}
		return null;
	}