A Week in Core – July 19, 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 July 12 and July 19, 2021.

  • 37 commits
  • 35 contributors
  • 53 tickets created
  • 15 tickets reopened
  • 51 tickets closed

Please note that WordPress 5.8 will be released tomorrow on Tuesday July 20, 2021 🌟

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

Application Passwords

  • Improve various user-facing and developer-facing terminology – #53503, #53691

Build/Test Tools

  • Update the caniuse browser data and regenerate CSSCSS Cascading Style Sheets.#53277
  • Clean up skipping conditions and requirements for various tests – #53009
  • Correct the test for autosaving a post with Ajax – #53363
  • Replace assertContains() with assertStringContainsString() when used with strings – #53363, #46149
  • Require the WP_REST_Test_Controller class in WP_REST_Controller tests – #53363
  • Reset $current_screen global between tests to avoid cross-test interdependencies – #53431
  • Use more appropriate assertions in rest_sanitize_request_arg() tests – #53363
  • Use more appropriate assertions in various tests – #53123, #53363
  • Use more appropriate assertions in various tests – #53363
  • Use more appropriate assertions in various tests – #53363
  • Use more appropriate assertions in various tests – #53363
  • Use more appropriate assertions in various tests – #53363
  • Use more appropriate assertions in various tests – #53363
  • Use more appropriate assertions in various tests – #53363
  • Use more appropriate assertions in various tests – #53363

Bundled Themes

  • Revert the [51372] update to blockBlock Block is the abstract term used to describe units of markup that, composed together, form the content or layout of a webpage using the WordPress editor. The idea combines concepts of what in the past may have achieved with shortcodes, custom HTML, and embed discovery into a single consistent API and user experience. patterns in bundled themes – #53617

Coding Standards

  • Fix WPCSWPCS The collection of PHP_CodeSniffer rules (sniffs) used to format and validate PHP code developed for WordPress according to the WordPress Coding Standards. May also be an acronym referring to the Accessibility, PHP, JavaScript, CSS, HTML, etc. coding standards as published in the WordPress Coding Standards Handbook. issue in [51404]#53363
  • Use the correct formatting for multi-line comments

CustomizerCustomizer Tool built into WordPress core that hooks into most modern themes. You can use it to preview and modify many of your site’s appearance settings.

  • Don’t always set normalizedTransitionendEventName to null#53562


  • Correct documentation for wp_get_post_parent_id()#53399
  • Synchronize the $post_id argument description for some post and attachment functions – #53399
  • Various documentation fixes following [51129]#44314


  • Second round of package updates ahead of RC3
  • Backportbackport A port is when code from one branch (or trunk) is merged into another branch or trunk. Some changes in WordPress point releases are the result of backporting code from trunk to the release branch. fixes targetted for WordPress 5.8 RC4 – #53397
  • Include the fixes targetted for WordPress 5.8 RC3 – #53397


  • Update the About page for 5.8 – #52775
  • Update the About section for 5.8 – #52775


  • Document edge cases with the new image_editor_output_format filterFilter Filters are one of the two types of Hooks https://codex.wordpress.org/Plugin_API/Hooks. They provide a way for functions to modify data of other functions. They are the counterpart to Actions. Unlike Actions, filters are meant to work in an isolated manner, and should never have side effects such as affecting global variables and output.#5366, #53668, #35725
  • Fix JSJS JavaScript, a web scripting language typically executed in the browser. Often used for advanced user interfaces and behaviors. error in Media Library when infinite scroll enabled – #53672
  • When resizing WebP images set the compression to “lossy” by default. Fixes a bugbug A bug is an error or unexpected result. Performance improvements, code optimization, and are considered enhancements, not defects. After feature freeze, only bugs are dealt with, with regressions (adverse changes from the previous version) being the highest priority. where the compression was set to “lossless” when the uploaded WebP images have extended file format (VP8X) – #53653


  • Ensure the copy button actually copies the suggested privacy policy text – #53652, #52891


  • Add additional files to $_old_files for 5.8 – #53367


  • Prevent widgets unintentionally being moved to the inactive 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.#53657
  • Replace wp.editor references in the legacy text widgetWidget A WordPress Widget is a small block that performs a specific function. You can add these widgets in sidebars also known as widget-ready areas on your web page. WordPress widgets were originally created to provide a simple and easy-to-use way of giving design and structure control of the WordPress theme to the user.#53437
  • Use wp_sidebar_description() to retrieve a sidebar’s description#53646
  • Validate HTMLHTML HyperText Markup Language. The semantic scripting language primarily used for outputting content in web browsers. before saving block widgets


Thanks to the 35 people who contributed to WordPress Core on Trac last week: @desrosj (6), @SergeyBiryukov (4), @jrf (3), @peterwilsoncc (3), @hellofromTonya (3), @adamsilverstein (2), @javiarce (2), @talldanwp (2), @zieladam (2), @timothyblynjacobs (2), @mikeschroder (2), @antpb (1), @denisco (1), @milana_cap (1), @karmatosed (1), @audrasjb (1), @nao (1), @kevin940726 (1), @noisysocks (1), @jorbin (1), @johnbillion (1), @mukesh27 (1), @kapilpaul (1), @youknowriad (1), @ianmjones (1), @mcsf (1), @get_dave (1), @ellatrix (1), @walbo (1), @dd32 (1), @htmgarcia (1), @linux4me2 (1), @mmxxi (1), @wildworks (1), and @spacedmonkey (1).

Congrats and welcome to our 3 new contributors of the week! @htmgarcia, @linux4me2, and @mmxxi ♥️

Core committers: @sergeybiryukov (16), @desrosj (12), @youknowriad (2), @ryelle (2), @johnbillion (1), @joedolson (1), @azaozz (1), @mikeschroder (1), and @peterwilsoncc (1).

#5-8, #week-in-core