On September 1, 2020, WordPress 5.5.1 was released to the public.
Installation/Update Information
To download WordPress 5.5.1, update automatically from the Dashboard > Updates menu in your site’s admin area or visit WordPress releases archive.
For step-by-step instructions on installing and updating WordPress:
If you are new to WordPress, we recommend that you begin with the following:
- New To WordPress – Where to Start
- First Steps With WordPress or Upgrading WordPress Extended
- WordPress Lessons
Summary
Maintenance updates
WordPress 5.5.1 features?34 bug fixes and 4 enhancements, as well as?5 bug fixes?for the?block?editor.
WordPress Core changes on Trac:
- #50882 – Administration: WP 5.5: Cannot attribute content when deleting users
- #50998 – Quick/Bulk Edit: Editing posts using bottom “Bulk actions” dropdown menu doesn’t work
- #38009 – Comments:
#reply-title.comment-reply-titlenot updating when replying to an individual - #50845 – Editor: Block patterns: Fix translatable strings (take 2)
- #50858 – Site Health: Check PHP notices with
site_status_testsfilter - #50887 – Site Health: Add site environment to debug information
- #50892 – Editor: Some block patterns have text contrast issues with dark themes
- #50910 – Sitemaps: 5.5 Sitemap URLs are incorrectly paginated
- #50912 – Site Health: flags define
WP_AUTO_UPDATE_COREvalue as an error - #50919 – Script Loader: Change the
jqueryhandle back to an alias forjquery-core - #50933 – Media: Lazy loading in 5.5 causes flashing of custom logo in Firefox
- #50945 – Site Health: don’t give a warning when
upload_max_sizeis lower thanmax_post_size - #50988 – Upgrade/Install: Pass details about the specific plugin and theme updates attempted to filters
- #50992 – Bootstrap/Load: Remove the ability to alter the list of environment types in
wp_get_environment_type() - #50999 – Script Loader: Disable concatenation for scripts with translations to ensure they are printed in the right order
- #51011 – Upgrade/Install: Empty string comparison on home option during DB upgrades is invalid
- #51018 – Editor: PHP Notice thrown when searching for certain terms via the Gutenberg block directory
- #51151 – Editor: Packages update
- #51021 – REST API: Permit uniqueItems keyword in endpoint args
- #51146 – REST API: Fix multi-type schemas with integer fields
- #51029 – Filesystem API: Typo in variable name causes warning from
fclose() - #51042 – Post: missing excerpt
- #51050 – Docs: Add docblock for
get_the_archive_title()filter - #51052 – Administration: Undefined index: update-supported
- #51060 – Docs: Update
register_rest_routedocblock to reflect additions since 5.5 - #51064 – Bootstrap/Load: Consider adding “local” as environment on
WP_ENVIRONMENT_TYPE - #51073 – Administration: Extra padding below the admin bar
- #51075 – Docs: Update docs for custom logo functions
- #51122 – Docs: add a mention about the use of
loading attribute in wp_get_attachment_imagefunction - #51127 – UI/CSS: Remove non-color related styling from Modern color scheme
- #51129 – Upgrade/Install: Only display the auto-update links on the Network Admin > Themes screen for themes that support the feature
- #51337 – Template:
wp_terms_checklistnot checking selected taxonomy items withselected_catsoption - #51184 –
get_the_date()checks$formatonly for empty variable and fails onfalseboolean - #51182 –
Theme_Installer_skin::do_overwritedoes not work on a Windows server - #38009 –
#reply-title.comment-reply-titlenot updating when replying to an individual - #51123 –
commonL10nand other JS globals removed without backwards compatibility - #50848 – Clarify the usage of null for
auto_update_{$type}filter - #51081 – Fatal Error – Undefined
get_page_templates()in Customizer - #51154 – sitemaps should be initialized before each test is run
- #51028 – Dot should be out of the quotes
Block editor changes from GitHub:
- PR24609 – Fix missing selected block highlighting in list view
- PR24599 – Fix specificity for buttons with outline style and background colors
- PR24533 – Fix incorrect aria description in List View
- PR24516 – Fix regression bug for category select in QueryControls component
- PR24478 – Fix tiny editor preview when using Mobile or Tablet options with metaboxes enabled
The 5.5.1 release was led by @audrasjb, @azhiyadev, @davidbaumwald, @desrosj, @johnbillion, @planningwrite, @sergeybiryukov and @whyisjake.
Thank you to everyone who helped make WordPress 5.5.1 happen:
Amit Dudhat, Andrea Fercia, Andrey “Rarst” Savchenko, Andy Fragen, Angel Hess, avixansa, bobbingwide, Brian Hogg, chunkysteveo, Clayton Collie, David Baumwald, David Herrera, dd32, demetris, Dominik Schilling, dushakov, Earle Davies, Enrique Sánchez, Frankie Jarrett, fullofcaffeine, Garrett Hyder, Gary Jones, gchtr, Herre Groen, Howdy_McGee, Ipstenu (Mika Epstein), Jb Audras, Jeremy Felt, Jeroen Rotty, Joen A., Johanna de Vos, John Blackbourn, John James Jacoby, Jonathan Bossenger, Jonathan Desrosiers, Jonathan Stegall, Joost de Valk, Jorge Costa, Justin Ahinon, Kalpesh Akabari, Kevin Hagerty, Knut Sparhell, Kyle B. Johnson, landau, Laxman Prajapati, Lester Chan, mailnew2ster, Marius L. J., Mark Jaquith, Mark Uraine, Matt Gibson, Michael Beckwith, Mikey Arce, Mohammad Jangda, Mukesh Panchal, Nabil Moqbel, net, oakesjosh, O André, Omar Reiss, Ov3rfly, Paddy, Pascal Casier, Paul Biron, Peter Wilson, rajeshsingh520, Rami Yushuvaev, rebasaurus, riaanlom, Riad Benguella, Rodrigo Arias, rtagliento, salvoaranzulla, Sanjeev Aryal, sarahricker, Sergey Biryukov, Stephen Bernhardt, Steven Stern (sterndata), Thomas M, Timothy Jacobs, TobiasBg, tobifjellner (Tor-Bjorn Fjellner), TwentyZeroTwo, wittich, and Yoav Farhi.
For more information, browse the full list of changes on Trac.
Notes for developers
List of Files Revised
wp-admin/admin-header.php wp-admin/css/colors/modern/colors-rtl.css wp-admin/css/colors/modern/colors-rtl.min.css wp-admin/css/colors/modern/colors.css wp-admin/css/colors/modern/colors.min.css wp-admin/css/colors/modern/colors.scss wp-admin/includes/class-theme-installer-skin.php wp-admin/includes/class-walker-category-checklist.php wp-admin/includes/class-wp-automatic-updater.php wp-admin/includes/class-wp-debug-data.php wp-admin/includes/class-wp-filesystem-ftpext.php wp-admin/includes/class-wp-list-table.php wp-admin/includes/class-wp-ms-themes-list-table.php wp-admin/includes/class-wp-plugins-list-table.php wp-admin/includes/class-wp-site-health-auto-updates.php wp-admin/includes/class-wp-site-health.php wp-admin/includes/template.php wp-admin/includes/upgrade.php wp-admin/js/common.js wp-admin/js/common.min.js wp-admin/js/theme-plugin-editor.js wp-admin/js/theme-plugin-editor.min.js wp-admin/js/updates.js wp-admin/js/updates.min.js wp-admin/js/widgets.js wp-admin/js/widgets.min.js wp-includes/assets/script-loader-packages.php wp-includes/block-patterns/heading-paragraph.php wp-includes/block-patterns/large-header-button.php wp-includes/block-patterns/text-three-columns-buttons.php wp-includes/block-patterns/text-two-columns-with-images.php wp-includes/block-patterns/text-two-columns.php wp-includes/canonical.php wp-includes/class.wp-scripts.php wp-includes/comment-template.php wp-includes/css/dist/block-editor/style-rtl.css wp-includes/css/dist/block-editor/style-rtl.min.css wp-includes/css/dist/block-editor/style.css wp-includes/css/dist/block-editor/style.min.css wp-includes/css/dist/block-library/style-rtl.css wp-includes/css/dist/block-library/style-rtl.min.css wp-includes/css/dist/block-library/style.css wp-includes/css/dist/block-library/style.min.css wp-includes/formatting.php wp-includes/general-template.php wp-includes/js/comment-reply.js wp-includes/js/comment-reply.min.js wp-includes/js/dist/block-editor.js wp-includes/js/dist/block-editor.min.js wp-includes/js/dist/components.js wp-includes/js/dist/components.min.js wp-includes/load.php wp-includes/media.php wp-includes/rest-api.php wp-includes/rest-api/endpoints/class-wp-rest-block-directory-controller.php wp-includes/rest-api/endpoints/class-wp-rest-controller.php wp-includes/script-loader.php wp-includes/sitemaps.php wp-includes/version.php
Updated packages
No package was updated.