WordPress announced that the upcoming March updates, WordPress 5.4 might feature lazy-loading images by default. Lazy-loading HTML attribute tells a browser whether to wait before downloading an image or download it right away.
What is Lazy Loading?
Lazy loading is the best practice to delay loading or initialization of resources or objects until they’re actually needed to improve performance and save system resources.
For example, if a Web page has an image that the user has to scroll down to see, you can display a placeholder and lazy load the full image only when the user arrives to its location.
Benefits of lazy loading
Reduces initial load time
Lazy loading a webpage reduces page weight, allowing for a quicker page load time.
Lazy loading conserves bandwidth by delivering content to users only if it’s requested.
System resource conservation
About WordPress 5.4 Release
WordPress 5.4 is currently set to release on March 31, 2020. That date is subject to change depending on how ready the release is. But WordPress has been very good about meeting their deadlines.