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Plugin : Install and activate the WordPress Beta Tester plugin on a WordPress install (select the “Bleeding edge” channel and “Beta/RC Only” stream). -
Direct download : Download the RC1 version (zip) and install it on a WordPress site. -
Command line : Use the following WP-CLI command: wp core update --version=6.4-RC1
What’s in WordPress 6.4 RC1?
Highlights
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A new flexible default theme brings together the latest and greatest of WordPress. Discover its vast collection of templates and patterns to tweak and match your brand. Built for versatility, Twenty Twenty-Four is an ideal fit for nearly any type of website. -
Enable lightbox functionality in images for immersive viewing experiences. -
Organize your patterns with your own custom categories . Find them all more intuitively with advanced filtering in the Patterns section of the inserter. -
Enjoy more writing improvements , including new keyboard shortcuts, smoother list merging, and enhanced control over your link settings. A revamped toolbar experience for Navigation, List, and Quote blocks ensures cohesive and organized access to the tooling options you work with. -
A redesigned Command Palette with new commands helps you find what you need, perform tasks efficiently, and speed up your workflow. -
Rename Group blocks to organize and distinguish areas of your content easily. -
See and locate your content’s media assets at a glance with new gallery and image previews in List View . -
Build beautiful yet functional layouts with an expanded set of design tools . Play with background images in Group blocks for unique creative designs, keep image dimensions consistent with placeholder aspect ratios, and effortlessly add buttons to your Navigation block without custom CSS—among other new capabilities. -
Block Hooks enable developers to automatically insert blocks at their chosen content locations, enriching the extensibility of block themes through plugins. While developer-centric, this new feature improves your building experience with blocks and gives you complete control to customize Block Hooks to your needs. -
Over 60 accessibility updates , including significant List View enhancements, aria-label support for the Navigation block, and upgrades to the admin user interface. -
More than 100 performance updates , focusing on template loading performance for classic and block themes, usage of the script loading strategies “defer” and “async,” and optimization of autoloaded options.
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Changes to attachment pages for improved SEO -
Miscellaneous Editor changes in WordPress 6.4 -
Introducing Block Hooks for dynamic blocks -
Script loading changes in WordPress 6.4 -
Improvements to template loading in WordPress 6.4 -
Introducing admin notice functions in WordPress 6.4 -
Updates to user-interface components in WordPress 6.4 -
New `registerInserterMediaCategory` API
Ways to contribute
Get involved in testing
Search for vulnerabilities
Update your theme or plugin
Help translate WordPress
A haiku for RC1