What are the new features introduced in Selenium 4?

import static org.openqa.selenium.support.locators.RelativeLocator.*;

// Find password field that is BELOW username field
WebElement username = driver.findElement(By.id("username"));
WebElement password = driver.findElement(
    with(By.tagName("input")).below(username)
);

// Find label to the LEFT of an input
WebElement label = driver.findElement(
    with(By.tagName("label")).toLeftOf(By.id("email"))
);

// Find element NEAR another (within 50px)
WebElement helpIcon = driver.findElement(
    with(By.tagName("span")).near(By.id("phoneField"))
);

ChromeDriver driver = new ChromeDriver();
DevTools devTools = driver.getDevTools();
devTools.createSession();

// Enable network interception
devTools.send(Network.enable(Optional.empty(), Optional.empty(), Optional.empty()));

// Mock geolocation
devTools.send(Emulation.setGeolocationOverride(
    Optional.of(40.7128), Optional.of(-74.0060), Optional.of(1)
));

// Intercept requests
devTools.addListener(Network.requestWillBeSent(), request -> {
    System.out.println("Request: " + request.getRequest().getUrl());
});

// Open a new tab and switch to it
driver.switchTo().newWindow(WindowType.TAB);

// Open a new browser window
driver.switchTo().newWindow(WindowType.WINDOW);

# Standalone (all-in-one)
java -jar selenium-server.jar standalone

# Hub
java -jar selenium-server.jar hub

# Node
java -jar selenium-server.jar node --hub http://hub:4444

// Screenshot of a specific element (not whole screen)
WebElement card = driver.findElement(By.cssSelector(".product-card"));
File screenshot = card.getScreenshotAs(OutputType.FILE);

PrintsPage printer = (PrintsPage) driver;
PrintOptions printOptions = new PrintOptions();
Pdf pdf = printer.print(printOptions);
String base64pdf = pdf.getContent();