A Week in Core – October 11, 2021

Welcome back to a new issue of Week in CoreCore Core is the set of software required to run WordPress. The Core Development Team builds WordPress.. Let’s take a look at what changed on TracTrac An open source project by Edgewall Software that serves as a bug tracker and project management tool for WordPress. between October 4 and October 11, 2021.

  • 16 commits
  • 30 contributors
  • 29 tickets created
  • 5 tickets reopened
  • 17 tickets closed

The Core team is currently working on the next point (5.8.2) and major (5.9) releases 🛠

Ticketticket Created for both bug reports and feature development on the bug tracker. numbers are based on the Trac timeline for the period above. The following is a summary of commits, organized by component and/or focus.

Code changes


  • Allow pluginPlugin A plugin is a piece of software containing a group of functions that can be added to a WordPress website. They can extend functionality or add new features to your WordPress websites. WordPress plugins are written in the PHP programming language and integrate seamlessly with WordPress. These can be free in the WordPress.org Plugin Directory https://wordpress.org/plugins/ or can be cost-based plugin from a third-party action links row to wrap – #53275

Build/Test Tools

  • Change the patchpatch A special text file that describes changes to code, by identifying the files and lines which are added, removed, and altered. It may also be referred to as a diff. A patch can be applied to a codebase for testing. version used for testing the 5.6 branchbranch A directory in Subversion. WordPress uses branches to store the latest development code for each major release (3.9, 4.0, etc.). Branches are then updated with code for any minor releases of that branch. Sometimes, a major version of WordPress and its minor versions are collectively referred to as a "branch", such as "the 4.0 branch". of PHPPHP The web scripting language in which WordPress is primarily architected. WordPress requires PHP 5.6.20 or higher#54223

Bundled Themes

  • Twenty Twenty-One: Remove duplicate width and height values from social icons – #54208

Coding Standards

  • Use strict type check for in_array() in register_block_script_handle()#54206, #53359


  • Add a @since note for the new $parent_block parameter of several filters – #51612
  • Improve various inline documentation for adminadmin (and super admin) bar functions and hooksHooks In WordPress theme and development, hooks are functions that can be applied to an action or a Filter in WordPress. Actions are functions performed when a certain event occurs in WordPress. Filters allow you to modify certain functions. Arguments used to hook both filters and actions look the same.#53399
  • Miscellaneous inline documentation improvements, including: – #53399


  • Apply the pre_render_block, render_block_data, and render_block_context filters when rendering inner/nested blocks – #51612

External Libraries

  • Revert [51900] for now to investigate test failures – #54162
  • Update getID3 to version 1.9.21 – #54162
  • Update jQuery UIUI User interface to 1.13.0 final – #52163


  • Move the NginxNGINX NGINX is open source software for web serving, reverse proxying, caching, load balancing, media streaming, and more. It started out as a web server designed for maximum performance and stability. In addition to its HTTP server capabilities, NGINX can also function as a proxy server for email (IMAP, POP3, and SMTP) and a reverse proxy and load balancer for HTTP, TCP, and UDP servers. https://www.nginx.com/. documentation link to help sidebarSidebar A sidebar in WordPress is referred to a widget-ready area used by WordPress themes to display information that is not a part of the main content. It is not always a vertical column on the side. It can be a horizontal rectangle below or above the content area, footer, header, or any where in the theme. in wp-admin/options-permalink.php#39258


  • AccessibilityAccessibility Accessibility (commonly shortened to a11y) refers to the design of products, devices, services, or environments for people with disabilities. The concept of accessible design ensures both “direct access” (i.e. unassisted) and “indirect access” meaning compatibility with a person’s assistive technology (for example, computer screen readers). (https://en.wikipedia.org/wiki/Accessibility): Use red color for action buttons on the Erase Personal Data screen: – #49603

Site Health

  • Use an integer value as a fallback in the available disk space check – #51857

TaxonomyTaxonomy A taxonomy is a way to group things together. In WordPress, some common taxonomies are category, link, tag, or post format. https://codex.wordpress.org/Taxonomies#Default_Taxonomies.

  • Populate the WP_Terms_List_Table::$items property in ::prepare_items()#54181



Thanks to the 30 people who contributed to WordPress Core on Trac last week: @audrasjb (4), @SergeyBiryukov (4), @azaozz (3), @mukesh27 (2), @sabernhardt (2), @hellofromTonya (2), @Clorith (2), @noisysocks (2), @peterwilsoncc (2), @aristath (2), @sergeybiryukov (2), @joedolson (1), @carike (1), @arena (1), @desrosj (1), @timlappe (1), @johnjamesjacoby (1), @jrf (1), @gaambo (1), @Presskopp (1), @laxman-prajapati (1), @max-dayala (1), @swissspidy (1), @mattoakley (1), @mgol (1), @TobiasBg (1), @pbiron (1), @galbaras (1), @afragen (1), and @ankit-k-gupta (1).

Congrats and welcome to our 3 new contributors of the week: @timlappe, @max-dayala, @mattoakley ♥️

Core committers: @sergeybiryukov (8), @hellofromtonya (3), @azaozz (2), @johnbillion (2), and @desrosj (1).

#5-8-2, #5-9, #core, #week-in-core