I am using below capabilities
MutableCapabilities caps = new MutableCapabilities();
caps.setCapability("appiumVersion", "latest");
caps.setCapability("build", "<your build id>");
caps.setCapability("name", "<your test name>");
caps.setCapability("platformName", "iOS");
caps.setCapability("browserName", "Safari");
caps.setCapability("appium:deviceName", "iPhone 15 Pro Max");
caps.setCapability("appium:automationName", "xcuitest");
caps.setCapability("xxx:options", xxxOptions1);
URL url1 = new URL("https://xxxx.xxxx.com:443/wd/hub");
driver = new IOSDriver(new URL(url1.toString()), caps);
It works with appium 2.0.0