Gutenberg Times: Calls for Testing, Gutenberg 23.3, Block MCP and more — Weekend Edition 367

Date:

Hi there,

This is the time of the year when publishing on the Gutenberg Times becomes less frequent. I will be on vacation and back at the beginning of July with the weekend edition, just in-time for Beta 1 of WordPress 7.1. Three more Gutenberg plugin releases will happen before that.

What also happened was that someone grabbed my instagram account in this AI hack at Meta. Although Meta reports this as resolved, I probably won’t get my account back. I am now actively looking for a better way to share my photos without the overlords that can’t keep things tight. 🤦‍♀️ It’s not that I didn’t know better. <sigh/> 🤷‍♀️ It’s a cautionary tale for what’s in store for all internet services handing over crucial business processes to a gulliable AI.

Don’t let the small stuff bring you down. Have a splendid weekend ahead. Until July!

Yours, 💕
Birgit

I started watching WordCamp Europe LiveStreams on Friday and started with the keynote Two worlds collide: WordPress at CERN with Joachim Valdemar Yde and Francisco Borges Aurindo Barros. The Livestream are all routed to the WordPress YouTube account. The schedule is posted on the website.

Over the course of the weekend more recordings will be uploaded to WordPress TV > WordCamp Europe 2026.

On Saturday, Matt Mullenweg, co-founder of WordPress and CEO of Automattic will close out WordCamp Europe 2026 with his keynote. Afterward, the organizers will reveal where WordCamp Europe 2027 will take place. Tune in around 2:15 UTC / 8:15 am EDT.


I had the great pleasure chatting with Abha Thakor on the OpenMakers through what WordPress 7.0 “Armstrong” means for you. First, the safety bit: test on a staging site or Playground before updating, and check your PHP. Then the good stuff. Visual revisions show edits in context with color coding. Notes keep feedback inside the editor. Patterns gain content-only editing, blocks can hide by device, and new AI connector APIs give developers a unified foundation. Real-time editing waits for a later release.

Developing Gutenberg and WordPress

Arthur Chu walks you through what’s new in Gutenberg 23.3. The modal media editor is now the default for cropping. It pulls cropping, flip, rotation, and metadata into one place. The experimental customizable dashboard grows too, with five new widgets you can drag and resize. Responsive styles now reach individual blocks, so designs adapt per screen.


Rae Morey reports that Gutenberg 23.3 brings an experimental, customizable WordPress dashboard. It’s the admin’s biggest structural shakeup in years. You can drag, resize, and rearrange widgets like Welcome, Activity, and Site Health to fit how you actually work. It’s the first testable preview of a long-discussed overhaul. Enable it under Gutenberg > Experiments to try it.


Jarda Snajdr reports that the React 19 upgrade has been reverted in Gutenberg. Shortly after 23.3.0 shipped, many plugins built for React 18 started crashing. The APIs barely changed, but the runtimes clashed: React 19 rejects elements made by a bundled React 18 JSX helper. So 23.3.2 rolls back to React 18. The team still plans the upgrade for 7.1—this time with a feature flag and a compatibility layer.


Isabel Brison and I chatted extensively about the latest Gutenberg plugin releases 23.1 to 23.3 and discussed the responsive controls now available in the Gutenberg plugin for desktop, tablet and mobile view ports. The episode will drop in your favorite podcast app over the weekend.

Isabel Brison and Birgit Pauli-Haack recording Gutenberg Changelog 131

🎙 The latest episode is Gutenberg Changelog #130 – WordPress 7.0, Gutenberg 22.9 and 23.0, WordCamp Europe, Block Themes and More with Tammie Lister, Chief Product Officer at Convesio

Rich Tabor shares a few “little big things” for WordPress editing. The idea is simple: complexity has piled up, and small fixes can clear it. His PRs make block locking a one-click job in List View. They keep you in place when editing synced patterns, instead of whisking you off to another view. And zooming out reuses the familiar Patterns Explorer. He’s not precious about them—contributors are warmly invited to take them over the line.


Dave Smith walks you through an interactive prototype reimagining the WordPress Site Editor around user goals rather than system architecture. Built during Automattic’s Radical Speed Month, it keeps the same blocks, templates, and data model intact while changing entry points, language, and defaults. It’s an experiment, not a roadmap.

Calls for Testing for WordPress 7.1

With WordPress 7.0 out the door, contributors shared a series of Calls for testing this week to prepare for WordPress 7.1. The schedule is tight with Beta 1 slated for July 15, 2026.

Ramon Dodd puts out a call for testing the new Media Editor Modal. Cropping in the block editor hasn’t changed much in years, and the old inline tool leans on a limited third-party library. This new standard way of Image edition inside the Block editor replaces it with a WordPress-native one. You get freeform and aspect-ratio cropping, flip, rotation, and metadata editing in one place. The quickest way to try it is a ready-made Playground link. Feedback is welcome via the comments or GitHub.


Anne McCarthy announced a collaborative editing outreach effort for WordPress 7.1. After real-time collaboration was pulled from 7.0, this gathers real-world early adopters across many hosting setups to find bugs faster. It lives in one Slack channel, #collaborative-editing-outreach. If you’d use collaborative editing regularly and run the latest Gutenberg, you’re invited—through the cycle, with a test team badge at the end.

Rae Morey has the skinny for you in Contributors Launch FSE-Style Outreach Program to Get Real-Time Collaboration Ready for WordPress 7.1


Adam Silverstein puts out a call for testing client-side media processing, now targeting WordPress 7.1. Here’s the idea: when you upload an image, your browser resizes and encodes every size locally using VIPS in WebAssembly, before anything reaches the server. That eases CPU and memory load on hosts and brings modern formats like AVIF, WebP, HEIC, and JPEG XL to every site. Browsers that can’t cope fall back quietly to server-side. Try it in Chromium with the latest Gutenberg.

Plugins, Themes, and Tools for #nocode site builders and owners

Brian Coords invites you to a live panel on practical AI workflows for WordPress and WooCommerce on Tuesday, June 30, 2026, at 10am PDT. Hosted with Shani Banerjee and featuring Nik McLaughlin, Kyle Runner, and Suzanne Kolpakov, the conversation covers WooCommerce MCP, the WordPress Abilities API, Pressable MCP, and making your own plugins more agent-ready. You’ll come away with practical ideas for managing stores and guiding cautious clients, plus open Q&A. Can’t make it live? Register anyway for the recording.


Nathan Wrigley talks with plugin reviewer Luke Carbis about the future of WordPress plugins on the Jukebox podcast. Here’s the worry: plugin submissions have quadrupled in a year, largely AI-generated, so good plugins struggle to stand out. Carbis floats ideas you can test: logging into your site with your WordPress.org account, installing from your own Git repos, or a commercial marketplace funding contributors. They also weigh AI ethics, a generational backlash, and his proposed AI-disclosure header for the directory.


Wes Theron published a new training video and you can learn how to customize your site’s navigation menus with AI. Once your site is connected, you describe the change and the agent makes it. You’ll learn to add a page to your header, remove an outdated link, and reorder items. It also covers building dropdown menus under an unclickable parent, adding a footer menu, and linking to blog categories. The point: clear menus help visitors find what matters.

Theme Development for Full Site Editing and Blocks

Ajit Bohra and the LUBUS team released Color Palette Block 2.0, a free plugin for building and sharing color palettes in the block editor. It grew out of their own client and internal documentation needs. It’s handy for brand kits, design systems, and style guides. You add swatches manually, pull from your theme, or generate random ones. Pick from four display styles—Square, Polaroid, Circle, or Droplet—and copy each color as HEX, RGB, HSL, or a CSS variable.


Justin Tadlock shares a playful tutorial on registering custom icons for WordPress 7.0’s new Icon block. Since the public registration API won’t land until 7.1, you’ll learn a clever workaround using PHP Reflection to reach the protected WP_Icons_Registry::register() method, bundling SVGs in your theme through an Icon enum and registrar class. Built on work by Ryan Welcher and Nick Diego, it’s educational fun—not for production, where Nick Diego’s Icon Block plugin still does the job properly.

“Keeping up with Gutenberg – Index 2025”
A chronological list of the WordPress Make Blog posts from various teams involved in Gutenberg development: Design, Theme Review Team, Core Editor, Core JS, Core CSS, Test, and Meta team from Jan. 2024 on. Updated by yours truly. 

The previous years are also available:
2020 | 2021 | 2022 | 2023 | 2024

Building Blocks and Tools for the Block editor.

Casey Burridge introduced Block MCP, GravityKit’s open-source WordPress MCP server. The problem it solves is familiar: existing MCPs treat a post as one HTML blob, so AI edits strip block markers and break your layout. Block MCP exposes each block as an addressable unit with a stable ID. Your agent can make surgical edits, batch up to 50 changes atomically, and undo any of them. In their tests across Claude models, only Block MCP worked reliably.

Need a plugin .zip from Gutenberg’s master branch?
Gutenberg Times provides daily build for testing and review.

Now also available via WordPress Playground. There is no need for a test site locally or on a server. Have you been using it? Email me with your experience.


Questions? Suggestions? Ideas?
Don’t hesitate to send them via email or
send me a message on WordPress Slack or Twitter @bph.


For questions to be answered on the Gutenberg Changelog,
send them to changelog@gutenbergtimes.com


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