Title: Advanced – WordPress Developer Blog --- * [Showcase](https://wordpress.org/showcase/) * [Plugins](https://wordpress.org/plugins/) * [Themes](https://wordpress.org/themes/) * [Hosting](https://wordpress.org/hosting/) * [News](https://wordpress.org/news/) - [Learn WordPress](https://learn.wordpress.org/) - [Documentation](https://wordpress.org/documentation/) - [Education](https://wordpress.org/education/) - [Forums](https://wordpress.org/support/forums/) - [Developers](https://developer.wordpress.org/) - [Blocks](https://wordpress.org/blocks/) - [Patterns](https://wordpress.org/patterns/) - [Photos](https://wordpress.org/photos/) - [Openverse ︎](https://openverse.org/) - [WordPress.tv ︎](https://wordpress.tv/) * - [About WordPress](https://wordpress.org/about/) - [Make WordPress](https://make.wordpress.org/) - [Events](https://events.wordpress.org/) - [Five for the Future](https://wordpress.org/five-for-the-future/) - [Enterprise](https://wordpress.org/enterprise/) - [Gutenberg ︎](https://wordpress.org/gutenberg/) - [Job Board ︎](https://jobs.wordpress.net/) * [Swag ︎](https://mercantile.wordpress.org/) * [Get WordPress](https://wordpress.org/download/) Search in WordPress.org [ Get WordPress ](https://wordpress.org/download/) [WordPress Developer Blog](https://developer.wordpress.org/news) Advanced * [Snippets](https://developer.wordpress.org/news/snippets/) - [Blocks](https://developer.wordpress.org/news/category/blocks/) - [Concepts](https://developer.wordpress.org/news/category/concepts/) - [Common APIs](https://developer.wordpress.org/news/category/common-apis/) - [Design](https://developer.wordpress.org/news/category/design/) - [Playground](https://developer.wordpress.org/news/category/playground/) - [Plugins](https://developer.wordpress.org/news/category/plugins/) - [Themes](https://developer.wordpress.org/news/category/themes/) * - [About this site](https://developer.wordpress.org/news/about/) - [Updates](https://developer.wordpress.org/news/category/updates/) - [How to contribute](https://developer.wordpress.org/news/how-to-contribute/) - [Tips and guidelines](https://developer.wordpress.org/news/tips-and-guidelines-for-writers/) * [Subscribe](https://developer.wordpress.org/news/subscribe/) * [Developer Resources](https://developer.wordpress.org/) * [Snippets](https://developer.wordpress.org/news/snippets/) - [Blocks](https://developer.wordpress.org/news/category/blocks/) - [Concepts](https://developer.wordpress.org/news/category/concepts/) - [Common APIs](https://developer.wordpress.org/news/category/common-apis/) - [Design](https://developer.wordpress.org/news/category/design/) - [Playground](https://developer.wordpress.org/news/category/playground/) - [Plugins](https://developer.wordpress.org/news/category/plugins/) - [Themes](https://developer.wordpress.org/news/category/themes/) * - [About this site](https://developer.wordpress.org/news/about/) - [Updates](https://developer.wordpress.org/news/category/updates/) - [How to contribute](https://developer.wordpress.org/news/how-to-contribute/) - [Tips and guidelines](https://developer.wordpress.org/news/tips-and-guidelines-for-writers/) * [Subscribe](https://developer.wordpress.org/news/subscribe/) * [Developer Resources](https://developer.wordpress.org/) # Advanced * ## 󠀁[Rethinking do_action(): Events as objects, hooks as class names](https://developer.wordpress.org/news/2026/08/rethinking-do_action-events-as-objects-hooks-as-class-names/)󠁿 * By [Justin Tadlock](https://profiles.wordpress.org/greenshady/) * August 3, 2026 * [Advanced](https://developer.wordpress.org/news/category/advanced/), [Plugins](https://developer.wordpress.org/news/category/plugins/), [Themes](https://developer.wordpress.org/news/category/themes/) * How to use typed event objects to improve the payload you send to plugin and theme extenders. * ## 󠀁[Build your first AI-Powered WordPress plugin](https://developer.wordpress.org/news/2026/07/build-your-first-ai-powered-wordpress-plugin/)󠁿 * By [Jonathan Bossenger](https://profiles.wordpress.org/psykro/) * July 30, 2026 * [Advanced](https://developer.wordpress.org/news/category/advanced/), [AI](https://developer.wordpress.org/news/category/ai/) * If you’ve been watching the Core AI projects land and wondering how the pieces fit together in a real plugin, then this post is for you. We’re going to build one together, step by step, focusing on how to implement each of the three AI building blocks. * ## 󠀁[Getting started writing WordPress E2E Tests with Playwright](https://developer.wordpress.org/news/2026/05/getting-started-writing-wordpress-e2e-tests-with-playwright/)󠁿 * By [Róbert Mészáros](https://profiles.wordpress.org/meszarosrob/) * May 4, 2026 * [Advanced](https://developer.wordpress.org/news/category/advanced/), [Tests](https://developer.wordpress.org/news/category/tests/), [Tools](https://developer.wordpress.org/news/category/tools/) * Learn how to set up Playwright for WordPress E2E testing and write tests using real-world examples so you have a solid foundation to adapt for your own project. * ## 󠀁[@wordpress/build, the next generation of WordPress plugin build tooling](https://developer.wordpress.org/news/2026/04/wordpress-build-the-next-generation-of-wordpress-plugin-build-tooling/)󠁿 * By [JuanMa Garrido](https://profiles.wordpress.org/juanmaguitar/) * April 2, 2026 * [Advanced](https://developer.wordpress.org/news/category/advanced/), [Updates](https://developer.wordpress.org/news/category/updates/) * @wordpress/build replaces webpack and Babel with esbuild, auto-generates your PHP script registration from package.json conventions, and requires zero config. It already builds all 100+ Gutenberg packages. The plan is for it to power @wordpress/ scripts under the hood — so wp-scripts build stays the same, but gets faster and drops the hand-written PHP. The API is… * ## 󠀁[A better way to test HTML in WordPress with assertEqualHTML()](https://developer.wordpress.org/news/2026/02/a-better-way-to-test-html-in-wordpress-with-assertequalhtml/)󠁿 * By [JuanMa Garrido](https://profiles.wordpress.org/juanmaguitar/) * February 26, 2026 * [Advanced](https://developer.wordpress.org/news/category/advanced/), [Tests](https://developer.wordpress.org/news/category/tests/) * PHPUnit tests for HTML output are fragile. Attribute order changes, a trailing semicolon, and suddenly tests fail — even though the browser renders the same thing. WordPress 6.9 adds assertEqualHTML() to WP_UnitTestCase. It compares HTML semantically, so only real differences cause failures. * ## 󠀁[How to use DataForm to create plugin settings pages](https://developer.wordpress.org/news/2026/01/how-to-use-dataform-to-create-plugin-settings-pages/)󠁿 * By [Róbert Mészáros](https://profiles.wordpress.org/meszarosrob/) * January 20, 2026 * [Advanced](https://developer.wordpress.org/news/category/advanced/), [Common APIs](https://developer.wordpress.org/news/category/common-apis/), [Plugins](https://developer.wordpress.org/news/category/plugins/) * Learn how to build a settings page for the new era of WordPress admin, based on React components and using the DataForm component’s config-driven approach. * ## 󠀁[Word Switcher: Extending Core Blocks with Interactivity](https://developer.wordpress.org/news/2025/12/word-switcher-extending-core-blocks-with-interactivity/)󠁿 * By [JuanMa Garrido](https://profiles.wordpress.org/juanmaguitar/) * December 19, 2025 * [Advanced](https://developer.wordpress.org/news/category/advanced/), [Blocks](https://developer.wordpress.org/news/category/blocks/) * Learn to build a smooth word-switching effect in WordPress by combining four key APIs: HTML API for markup transformation, Interactivity API for animations, Format API for editor controls, and JavaScript Modules for efficient code—all without external libraries. * ## 󠀁[How to add automated unit tests to your WordPress plugin](https://developer.wordpress.org/news/2025/12/how-to-add-automated-unit-tests-to-your-wordpress-plugin/)󠁿 * By [David Perez](https://profiles.wordpress.org/davidperez/) * December 16, 2025 * [Advanced](https://developer.wordpress.org/news/category/advanced/), [Plugins](https://developer.wordpress.org/news/category/plugins/), [Tools](https://developer.wordpress.org/news/category/tools/) * This tutorial shows WordPress plugin developers how to add automated unit testing from setup to GitHub integration. Learn to catch bugs before users do, prevent regressions in stable code, and build confidence across different WordPress versions and configurations. * ## 󠀁[The importance of a good changelog](https://developer.wordpress.org/news/2025/11/the-importance-of-a-good-changelog/)󠁿 * By [Anne-Mieke Bovelett](https://profiles.wordpress.org/annebovelett/) * November 18, 2025 * [Advanced](https://developer.wordpress.org/news/category/advanced/) * A practical guide on writing changelogs that build trust, reduce confusion, and show professionalism, helping you and your users stay confidently informed. * ## 󠀁[Building a light/dark toggle with the Interactivity API](https://developer.wordpress.org/news/2025/09/building-a-light-dark-toggle-with-the-interactivity-api/)󠁿 * By [Justin Tadlock](https://profiles.wordpress.org/greenshady/) * September 11, 2025 * [Advanced](https://developer.wordpress.org/news/category/advanced/), [Themes](https://developer.wordpress.org/news/category/themes/) * A step-by-step guide in implementing light and dark color schemes for WordPress block themes with an interactive toggle button. 1 [2](https://developer.wordpress.org/news/category/advanced/page/2/?output_format=md) [3](https://developer.wordpress.org/news/category/advanced/page/3/?output_format=md)… [6](https://developer.wordpress.org/news/category/advanced/page/6/?output_format=md) [Next Page](https://developer.wordpress.org/news/category/advanced/page/2/?output_format=md) ## Have an idea for a new post? ### 󠀁[Learn how to contribute](https://developer.wordpress.org/news/how-to-contribute/)󠁿 Share your knowledge with fellow WordPress developers. 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