Published July 7, 2020. Details from the official source https://wordpress.org/news/2020/07/wordpress-5-5-beta-1/
What new features will be there:
Built-in image editing – crop, rotate and scale photos directly from image blocks.
Block Templates – Creating complex pages can be easier with new block templates. Several are included by default.
Device preview – see how your content will look for users on screens of different sizes.
The end of the block is overloaded. A new block insert panel displays ordered categories and collections. As a bonus, it supports templates and integrates with the new block catalog right out of the box.
Find, install and paste third-party blocks from your editor using the new block catalog.
Better, smoother editing experience with:
Refined Drag and Drop
Block the engines you can see and take
Parent Block Selection
Multi-select formatting allows you to change a bunch of blocks at the same time
Ability to easily copy and move blocks
And, better performance
An expanded set of tools for design themes.
Now add backgrounds and gradients for other types of blocks, such as groups, columns, multimedia, and text.
And support for more types of measurements – not just pixels. Choose ems, rems, percentages, vh, vw and more! In addition, adjust the height of the lines when typing, turning the recording and typing into a single process.
In all, WordPress 5.5 brings over 1,500 useful improvements to the block editor.
They also included Sitemap for XML now in WordPress by default. Sitemaps are needed by search engines that detect content on your site. Your site’s home page, posts, pages, custom post types and more will be added to improve the visibility of your site.
Auto updates for plugins and themes
WordPress 5.5 also offers auto-updates for plugins and themes. Easily manage which plugins and themes are updated themselves. It is always recommended to run the latest versions of all plugins and themes. Adding this feature makes it easier than ever!
Lazy loading images
WordPress 5.5 will include native support for lazily loaded images using new browser standards. With delayed loading, images will not be sent to users until they get closer to the viewing area. This saves bandwidth for everyone (users, hosts, Internet providers), makes it easier to browse web pages with lower internet speeds, saves energy and more.
With each release, WordPress is working hard to improve accessibility. Version 5.5 is no different and contains a package of fixes and accessibility improvements. Take a look:
List tables now have extended alternative view modes.
Link list widgets can now be converted to HTML5 navigation blocks.
Copying links on multimedia screens and in modal dialogs can now be done with a simple click of a button.
Disabled buttons now actually look disabled.
Meta boxes can now be moved using the keyboard.
The custom logo on the main page no longer refers to the first page.
Assistive devices can now see status messages in the image editor.
A jitter animation indicating a login error now takes into account the user’s choice in the prefers-reduced-motion media request.
Redundant Error: Prefixes have been removed from error messages.
Plugins and themes can now be updated by downloading the ZIP file.
More detailed control over redirect_guess_404_permalink ().
Updated several packaged external libraries, including PHPMailer, SimplePie, Twemoji, Masonry and others!
In the coming weeks, follow the Make WordPress Core blog for developer notes related to version 5.5, with a detailed description of these and other changes.
To date, participants have fixed more than 360 applications in WordPress 5.5, including 157 new features and improvements, and additional bug fixes are currently being prepared.