via wordpress.org => original post link
Synced patterns are replacing Reusable blocks, offering a unified creation experience for new pattern functionality coming to WordPress 6.3. Patterns, first introduced in WordPress 5.5, are a collection of blocks that make it simple to add complex layouts and designs to any WordPress site without starting from scratch. With WordPress 6.3, set to be released on August 8th, you will be able to arrange blocks in unlimited ways and save them as patterns for use throughout your site, directly within the editing experience. You can also specify whether to sync your patterns, so that one change applies to all parts of your site, or to keep them unsynced, so you can customize each instance.
Create your own patterns
The ability to create your own patterns, on top of using the ones bundled into each WordPress release, opens up a world of possibilities. Need to repeat the same contact information across your site and keep it up to date? Create a synced pattern with all the details, and say goodbye to repeating yourself, with the ability to quickly insert the synced pattern wherever you need it. If you find yourself creating various banners for your site and want them to have the same layout with unique content, creating an unsynced pattern speeds up your workflow and ensures a level of consistency in approach. While themes and plugins have been able to offer patterns to users and curate the experience, this update allows agencies and site builders to do the same for their clients, directly in the site building process.