Gutenberg 21.5 Released: Accordion Blocks, Command Panels, and Other New Features

Gutenberg Team in August 27, 2025It's official. Gutenberg 21.5 version, this update brings several new features, interface optimizations and performance improvements. For those who use WordPress Block EditorThis update improves design flexibility, editing experience and accessibility for users of Gutenberg 21.5. This article summarizes the core highlights and major updates of Gutenberg 21.5.

1. Gutenberg 21.5 Overview

Gutenberg 21.5 is a version update that emphasizes both functionality and experience. In addition to the introduction of new blocks and enhanced design tools, this time it also optimizes a number of core modules, such as the command panel, style control, data view and form components, to further improve the usability and performance of the editor.

Release Date: August 27, 2025
Core Highlights::

Add experimental Accordion Block (Accordion Block)
exist Management DashboardCentralized Command Panel
be in favor of Border radius presetImproved design consistency
Performance optimization of forms, data views and multimedia interactions
Lots of bug fixes and accessibility improvements

2. Highlights of new features

2.1 Introduction of experimental "accordion blocks"

Gutenberg 21.5 introduces a new experimental Accordion BlockIt consists of Trigger and Panel (Panel), support for independent settings style.

Main characteristics::

Customizable accordion unfolding and folding interaction
Each part of the style can be individually designed to support a higher degree of freedom.
Improve accessibility and semanticization to comply with accessibility standards
Adapts to mobile devices by default to ensure a responsive experience

This makes it easy for creators to build FAQs, step-by-step tutorials, and more into their pages, improving the efficiency of information organization.

2.2 Managing the Command Panel in the Dashboard

The Command Panel has been one of Gutenberg's key features in recent years, and the Version 21.5 integrates it into the WordPress admin dashboard for the first time!The

functionality improvement::

Quickly invoke commands directly in the background without leaving the current page
Searchable site settings, navigate to pages, launch plugin operations
Subsequent releases will continue to be expanded to support more commands and customization.

This update significantly improves operational efficiency for administrators and developers.

2.3 Support border radius preset

Gutenberg 21.5 in theme.json New in the document Border radius presetConfiguration.
Designers can now define uniform rounded corner styles ahead of time in the theme without having to manually set the border radius for each element.

dominance::

Ensure visual consistency of the website
Improve global design efficiency
With color, spacing, aspect ratio and other presets, unified style management

3. Functional enhancements and interface optimization

In addition to the main highlights.Gutenberg 21.5 A large number of existing features have been optimized, with highlights including:

3.1 Data view and form improvements

Optional infinite scrolling: Provide optional unlimited loading mode for data tables
Column Mobility Support: Table layout supports dragging columns left and right to enhance the visualization interaction experience
New card layout: Support for more content presentation formats
Form Addition Array Controlstogether with asynchronous verificationThe form is a flexible and easy to use form that is easy to use and easy to use.

3.2 Block library update

New "View" buttonThe support for quick previews in the navigation link block
Video Block Support iOS Autoplay
Improvements to the interactive experience of the cover block, navigation block, media and text blocks
"Accordions" has officially changed its name to "Accordion", more semanticized

3.3 Write mode optimization

Hide unnecessary cut, copy, etc. in write mode
Optimize contentOnly mode to reduce distractions
Fix styling issues with site logos, title blocks in write mode

4. Bug fixes and performance improvements

Gutenberg 21.5 addresses several user feedback issues and improves overall stability and usability:

Fix drag-and-drop interaction anomaly at the top of the page
Optimized custom CSS properties to support more unitless values
Fix overflow problem caused by long title of article parent page
Layout uniformity enhancements for table views and data grids
Improved icon and theme color compatibility

These optimizations make the editor more stable and the experience more consistent across multiple ends.

5. Developer-related updates

For developers, there are also several noteworthy changes in this update:

block.json Papers apiVersion field is set as a required field and must be 3
additional gradient parserUpgraded to 1.1.1, support richer gradient effects
Improve coverage of Storybook tests for form components
Upgrade Playwright to v1.54.2Improve end-to-end testing

6. Summary

Gutenberg 21.5 is a one-time event to New Features + Performance Optimizationscentered upgrades, especially accordion block,command panel respond in singing Border radius presetwas introduced to allow both creators and developers to build content and design pages more efficiently. At the same time, this update further enhances the usability of the block editor with improvements in data views, form interactions, and the block library experience.

For content creators, this means:

More efficient page content organization
Faster backend management operations
More flexible global design capabilities

If you want to experience the latest features, we recommend upgrading to the Gutenberg 21.5, and explore how these improvements can enhance the website editorial experience.

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