WordPress 5.2.2 Maintenance Release

WordPress 5.2.2 is now available! This maintenance release fixes 13 bugs and adds a little bit of polish to the Site Health feature that made its debut in 5.2.

For more info, browse the full list of changes on Trac or check out the Version 5.2.2 documentation page.

WordPress 5.2.2 is a short-cycle maintenance release. The next major release will be version 5.3; check make.wordpress.org/core for details as they happen.

JB Audras, Justin Ahinon and Mary Baum co-led this release, with invaluable guidance from our Executive Director, Josepha Haden Chomphosy, and contributions from 30 other contributors. Thank you to everyone who made this release possible!

You can download WordPress 5.2.2 or visit Dashboard → Updates and click Update Now. Sites that support automatic background updates have already started to update automatically.

Andrea Fercia, Andrew Duthie, Andrew Ozz, Andy Fragen, Birgir Erlendsson (birgire), Chetan Prajapati, David Baumwald, Debabrata Karfa, Garrett Hyder, Janki Moradiya, Jb Audras, jitendrabanjara1991, Jonathan Desrosiers, Jonny Harris, Jorge Costa, Marius L. J., Meet Makadia, Milan Dinić, Mukesh Panchal, palmiak, Pedro Mendonça, Peter Wilson, Rami Yushuvaev, Riad Benguella, sarah semark, Sergey Biryukov, Shashank Panchal, Tammie Lister, Tim Hengeveld, vaishalipanchal, vrimill, and William Earnhardt

WordPress 5.2.1 Maintenance Release

WordPress 5.2.1 is now available! This maintenance release fixes 33 bugs, including improvements to the block editor, accessibility, internationalization, and the Site Health feature introduced in 5.2.

You can browse the full list of changes on Trac.

WordPress 5.2.1 is a short-cycle maintenance release. Version 5.2.2 is expected to follow in approximately two weeks.

You can download WordPress 5.2.1 or visit Dashboard → Updates and click Update Now. Sites that support automatic background updates have already started to update automatically.

Jonathan Desrosiers and William Earnhardt co-led this release, with contributions from 52 other contributors. Thank you to everyone that made this release possible!

Alex Dimitrov, Alex Shiels, Andrea Fercia, Andrew Duthie, Andrew Ozz, Andrey “Rarst” Savchenko, Andy Fragen, anischarolia, Birgir Erlendsson (birgire), chesio, Chetan Prajapati, daxelrod, Debabrata Karfa, Dima, Dion Hulse, Dominik Schilling, Ella van Durpe, Emil Dotsev, ghoul, Grzegorz (Greg) Ziółkowski, gwwar, Hareesh, Ian Belanger, imath, Jb Audras, Jeremy Felt, Joen Asmussen, Jonathan Desrosiers, Jonny Harris, Josepha, jrf, kjellr, Marius L. J., MikeNGarrett, Milan Dinić, Mukesh Panchal, onlanka, paragoninitiativeenterprises, parkcityj, Peter Wilson, Presskopp, Riad Benguella, Sergey Biryukov, Stephen Edgar, Sébastien SERRE, Thorsten Frommen, Tim Hengeveld, Timothy Jacobs, timph, TobiasBg, tonybogdanov, Tor-Bjorn Fjellner, William Earnhardt, and Yui.

WordPress 5.2 “Jaco”

Keeping Sites Safer

Version 5.2 of WordPress, named “Jaco” in honor of renowned and revolutionary jazz bassist Jaco Pastorius, is available for download or update in your WordPress dashboard. New features in this update make it easier than ever to fix your site if something goes wrong.

There are even more robust tools for identifying and fixing configuration issues and fatal errors. Whether you are a developer helping clients or you manage your site solo, these tools can help get you the right information when you need it.


Site Health Check

Building on the Site Health features introduced in 5.1, this release adds two new pages to help debug common configuration issues. It also adds space where developers can include debugging information for site maintainers.

PHP Error Protection

This administrator-focused update will let you safely fix or manage fatal errors without requiring developer time. It features better handling of the so-called “white screen of death,” and a way to enter recovery mode,  which pauses error-causing plugins or themes.


Improvements for Everyone

Accessibility Updates

A number of changes work together to improve contextual awareness and keyboard navigation flow for those using screen readers and other assistive technologies.

New Dashboard Icons

Thirteen new icons including Instagram, a suite of icons for BuddyPress, and rotated Earth icons for global inclusion. Find them in the Dashboard and have some fun!

Plugin Compatibility Checks

WordPress will now automatically determine if your site’s version of PHP is compatible with installed plugins. If the plugin requires a higher version of PHP than your site currently uses, WordPress will not allow you to activate it, preventing potential compatibility errors.


Developer Happiness

PHP Version Bump

The minimum supported PHP version is now 5.6.20. As of WordPress 5.2*, themes and plugins can safely take advantage of namespaces, anonymous functions, and more!

Privacy Updates

A new theme page template, a conditional function, and two CSS classes make designing and customizing the Privacy Policy page easier.

New Body Hook

5.2 introduces a wp_body_open hook, which lets themes support injecting code right at the beginning of the <body> element.

Building JavaScript

With the addition of webpack and Babel configurations in the wordpress/scripts package, developers won’t have to worry about setting up complex build tools to write modern JavaScript.

*If you are running an old version of PHP (less than 5.6.20), update your PHP before installing 5.2.


The Squad

This release was led by Matt Mullenweg, Josepha Haden Chomphosy, and Gary Pendergast. They were graciously supported by 327 generous volunteer contributors. Load a Jaco Pastorius playlist on your favorite music service and check out some of their profiles:

aandrewdixon, Aaron D. Campbell, Aaron Jorbin, Adam Silverstein, Adam Soucie, Adil Öztaşer, Ajit Bohra, Alain Schlesser, aldavigdis, Alex Denning, Alex Kirk, Alex Mills, Alex Shiels, Alexis, Alexis Lloyd, allancole, Allen Snook, André, Andrés, andraganescu, Andrea Fercia, Andrea Middleton, Andrei Lupu, Andrew Duthie, Andrew Nacin, Andrew Ozz, Andrey "Rarst" Savchenko, Andy Fragen, Andy Meerwaldt, Aniket Patel, Anton Timmermans, Anton Vanyukov, Antonio Villegas, antonypuckey, Aristeides Stathopoulos, Aslam Shekh, axaak, Bego Mario Garde, Ben Dunkle, Ben Ritner - Kadence Themes, Benjamin Intal, Bill Erickson, Birgir Erlendsson, Bodo (Hugo) Barwich, bonger, Boone Gorges, Bradley Taylor, Brandon Kraft, Brent Swisher, bulletdigital, Burhan Nasir, Cathi Bosco, Chetan Prajapati, Chiara Magnani, Chouby, Chris Van Patten, D.S. Webster, Damon Cook, Daniel Bachhuber, Daniel James, Daniel Llewellyn, Daniel Richards, Daniele Scasciafratte, Darren Ethier (nerrad), Dave Whitley, DaveFX, davetgreen, David Binovec, David Binovec, David Herrera, David Roddick, David Smith, davidb, Davide 'Folletto' Casali, dekervit, Denis de Bernardy, Dennis Snell, Derek Herman, Derrick Hammer, designsimply, Dhanukanuwan, Dharmesh Patel, Diane, diegoreymendez, Dilip Bheda, Dima, Dion Hulse, Dixita Dusara, Dmitry Mayorov, Dominik Schilling, Drew Jaynes, dsifford, Ella van Durpe, etoledom, fabiankaegy, Faisal Alvi, Farhad Sakhaei, Felix Arntz, Franklin Tse, Fuegas, Garrett Hyder, Gary Jones, Gennady Kovshenin, Grzegorz (Greg) Ziółkowski, Guido Scialfa, GutenDev ✍㊙, Hannah Malcolm, Hardik Amipara, Hardik Thakkar, Hendrik Luehrsen, Henry, Henry Wright, Hoover, Ian Belanger, Ian Dunn, ice9js, Igor Zinovyev, imath, Ixium, J.D. Grimes, jakeparis, James, janak Kaneriya, Jarred Kennedy, Javier Villanueva, Jay Upadhyay, Jaydip Rami, Jayman Pandya, jdeeburke, Jean-Baptiste Audras, Jeff Paul, Jeffrey de Wit, Jenny, Jeremy Felt, Jeremy Green, Jeremy Herve, jitendrabanjara1991, JJJ, Joe Dolson, Joe McGill, Joen Asmussen, Johan Falk, Johanna de Vos, John Blackbourn, Jonathan Desrosiers, Jonathandejong, Jonny Harris, jonnybojangles, Joost de Valk, jordesign, Jorge Bernal, Jorge Costa, Jory Hogeveen, Jose Castaneda, josephwa, Josh Feck, JoshuaWold, Joy, jplo, JR Tashjian, jrf, Juhi Patel, juliarrr, K. Adam White, KamataRyo, Karine Do, Katyatina, Kelin Chauhan, Kelly Dwan, Khokan Sardar, killua99, Kite, Kjell Reigstad, Knut Sparhell, Koji Kuno, Konstantin Obenland, Konstantinos Xenos, Kʜᴀɴ (ಠ_ಠ), laurelfulford, lkraav, Luke Carbis, Luke Gedeon, Luke Pettway, Maedah Batool, Maja Benke, Malae, Manzoor Wani, Marcin, Marcin Pietrzak, Marco Peralta, marcofernandes, Marcus Kazmierczak, marekhrabe, Marius Jensen, Mariyan Belchev, Mark Uraine, markcallen, Markus Echterhoff, Marty Helmick, marybaum, mattnyeus, mdwolinski, Meet Makadia, Mel Choyce, mheikkila, Micah Wood, michelleweber, Miguel Fonseca, Miguel Torres, Mikael Korpela, Mike Auteri, Mike Schinkel [WPLib Box project lead], Mike Schroder, Mike Selander, MikeNGarrett, Milan Dinić, mirka, Mobin Ghasempoor, Mohadese Ghasemi, Mohammed Saimon, Morten Rand-Hendriksen, Morteza Geransayeh, Muhammad Muhsin, Mukesh Panchal, Mustafa Uysal, mzorz, Nahid F. Mohit, Naoki Ohashi, Nate Allen, Ned Zimmerman, Neokazis Charalampos, Nick Cernis, Nick Diego, Nick Halsey, Nidhi Jain, Niels Lange, nielsdeblaauw, Nikolay Nikolov, Nilambar Sharma, ninio, notnownikki, pandelisz, paragoninitiativeenterprises, Pascal Birchler, Paul Bearne, Paul Biron, Pedro Mendonça, Peter Booker, Peter Wilson, pfiled, pilou69, Pranali Patel, Pratik K. Yadav, Presskopp, psealock, Rachel Cherry, Rahmon, Ramanan, Rami Yushuvaev, Ramiz Manked, ramonopoly, Riad Benguella, Rinat Khaziev, Robert Anderson, Rudy Susanto, Ryan Boren, Ryan Welcher, Saeed Fard, Sal Ferrarello, Samaneh Mirrajabi, Sami Keijonen, Samuel Elh, Santiago Garza, Sara Cope, saracup, sarah semark, Sebastian Pisula, Sekineh Ebrahimzadeh, Sergey Biryukov, SergioEstevao, sgastard, sharifkiberu, shazdeh, Shital Marakana, sky_76, Soren Wrede, Stephen Edgar, Steven Word, Subrata Sarkar, Sudar Muthu, Sudhir Yadav, szepe.viktor, Takayuki Miyauchi, Tammie Lister, Themonic, thomstark, Thorsten Frommen, Thrijith Thankachan, Tim Hedgefield, Tim Wright, Timothy Jacobs, timph, tmatsuur, tmdesigned, tmdesigned, Tobias Zimpel, TomHarrigan, Tor-Bjorn Fjellner, Toro_Unit (Hiroshi Urabe), torres126, Torsten Landsiedel, Towhidul Islam, Tracy Levesque, Umang Bhanvadia, Vaishali Panchal, WebFactory, Weston Ruter, William 'Bahia' Bay, William Earnhardt, williampatton, Willscrlt, Wolly aka Paolo Valenti, wrwrwr0, Yoav Farhi, Yui, and zebulan.

Also, many thanks to all of the community volunteers who contribute in the support forums. They answer questions from people across the world, whether they are using WordPress for the first time or since the first release. These releases are more successful for their efforts!

If you want learn more about volunteering with WordPress, check out Make WordPress or the core development blog.

Thanks for choosing WordPress!

WordPress 5.2 RC2

The second release candidate for WordPress 5.2 is now available!

WordPress 5.2 will be released on Tuesday, May 7, but we need your help to get there—if you haven’t tried 5.2 yet, now is the time!

There are two ways to test the WordPress 5.2 release candidate: try the WordPress Beta Tester plugin (you’ll want to select the “bleeding edge nightlies” option), or you can download the release candidate here (zip).

For details about what to expect in WordPress 5.2, please see the first release candidate post.

This release includes the final About page design. It also contains fixes for:

  • Proper translation of the recovery mode notification emails (#47093).
  • Improvements to the way Site Health works with multisite installs (#47084).

Plugin and Theme Developers

Please test your plugins and themes against WordPress 5.2 and update the Tested up to version in the readme to 5.2. If you find compatibility problems, please be sure to post to the support forums so we can figure those out before the final release.

The WordPress 5.2 Field Guide has also been published, which details the major changes.

How to Help

Do you speak a language other than English? Help us translate WordPress into more than 100 languages!

If you think you’ve found a bug, you can post to the Alpha/Beta area in the support forums. We’d love to hear from you! If you’re comfortable writing a reproducible bug report, file one on WordPress Trac, where you can also find a list of known bugs.


It’s the start of May
and the release is coming.
We all give a cheer!

WordPress 5.2 Release Candidate

The first release candidate for WordPress 5.2 is now available!

This is an important milestone as we progress toward the WordPress 5.2 release date. “Release Candidate” means that the new version is ready for release, but with millions of users and thousands of plugins and themes, it’s possible something was missed. WordPress 5.2 is scheduled to be released on Tuesday, May 7, but we need your help to get there—if you haven’t tried 5.2 yet, now is the time!

There are two ways to test the WordPress 5.2 release candidate: try the WordPress Beta Tester plugin (you’ll want to select the “bleeding edge nightlies” option), or you can download the release candidate here (zip).

What’s in WordPress 5.2?

Continuing with the theme from the last release, WordPress 5.2 gives you even more robust tools for identifying and fixing configuration issues and fatal errors. Whether you are a developer helping clients or you manage your site solo, these tools can help get you the right information when you need it.

The Site Health Check and PHP Error Protection tools have brand new features, giving you peace of mind if you discover any issues with plugins or themes on your site. There are also updates to the icons available in your dashboard, fresh accessibility considerations for anyone using assistive technologies and more.

Plugin and Theme Developers

Please test your plugins and themes against WordPress 5.2 and update the Tested up to version in the readme to 5.2. If you find compatibility problems, please be sure to post to the support forums so we can figure those out before the final release.

The WordPress 5.2 Field Guide has also been published, which goes into the details of the major changes.

How to Help

Do you speak a language other than English? Help us translate WordPress into more than 100 languages! This release also marks the hard string freeze point of the 5.2 release schedule.

If you think you’ve found a bug, you can post to the Alpha/Beta area in the support forums. We’d love to hear from you! If you’re comfortable writing a reproducible bug report, file one on WordPress Trac, where you can also find a list of known bugs.


Howdy, RC 1!
With tools this interesting,
I can hardly wait.

WordPress 5.2 Beta 3

WordPress 5.2 Beta 3 is now available!

This software is still in development, so we don’t recommend you run it on a production site. Consider setting up a test site to play with the new version.

There are two ways to test the latest WordPress 5.2 beta: try the WordPress Beta Tester plugin (you’ll want to select the “bleeding edge nightlies” option), or you can download the beta here (zip).

WordPress 5.2 is slated for release on April 30, and we need your help to get there! Thanks to the testing and feedback from everyone who tried beta 2, nearly 40 tickets have been closed since then. Here are the major changes and bug fixes:

  • The new Site Health feature has continued to be refined.
  • Plugins no longer update if a site is running an unsupported version of PHP (see #46613).
  • It’s now more apparent when a site is running in Recovery Mode (see #46608).
  • The distraction free button no longer breaks keyboard navigation in the Classic Editor (see #46640).
  • Assistive technologies do a better job of announcing admin bar sub menus (see #37513).
  • Subject lines in WordPress emails are now more consistent (see #37940).
  • Personal data exports now only show as completed when a user downloads their data (see #44644).
  • Plus more improvements to accessibility (see #35497 and #42853).

Minimum PHP Version Update

Important reminder: as of WordPress 5.2 beta 2, the minimum PHP version that WordPress will require is 5.6.20. If you’re running an older version of PHP, we highly recommend updating it now, before WordPress 5.2 is officially released.

Developer Notes

WordPress 5.2 has lots of refinements to polish the developer experience. To keep up, subscribe to the Make WordPress Core blog and pay special attention to the developers notes for updates on those and other changes that could affect your products.

How to Help

Do you speak a language other than English? Help us translate WordPress into more than 100 languages! The beta 3 release also marks the soft string freeze point of the 5.2 release schedule.

If you think you’ve found a bug, you can post to the Alpha/Beta area in the support forums. We’d love to hear from you! If you’re comfortable writing a reproducible bug report, file one on WordPress Trac, where you can also find a list of known bugs.


Would you look at that
each day brings release closer
test to be ready
.

WordPress 5.2 Beta 2

WordPress 5.2 Beta 2 is now available!

This software is still in development, so we don’t recommend you run it on a production site. Consider setting up a test site to play with the new version.

There are two ways to test the WordPress 5.2 beta: try the WordPress Beta Tester plugin (you’ll want to select the “bleeding edge nightlies” option), or you can download the beta here (zip).

WordPress 5.2 is slated for release on April 30, and we need your help to get there! Thanks to the testing and feedback from everyone who tried beta 1, nearly 100 tickets have been closed since then. Here are the major changes and bug fixes:

  • We’ve added support for Emoji 12! 🪂
  • A brand-new wp_body_open() template tag (and corresponding wp_body_open action) will let themes (and plugins!) add content right after the <body> is opened (#12563).
  • Superfluous paragraph tags will no longer incorrectly appear in dynamic block content (#45495).
  • The Site Health screens have received several bug fixes, tweaks, and performance improvements.
  • Crash Protection no longer interrupts plugin editing (#46045).
  • Custom error handlers now load correctly (#46069).

Minimum PHP Version Update

As of WordPress 5.2 beta 2, the minimum PHP version that WordPress will require is 5.6.20. If you’re running an older version of PHP, we highly recommend updating it now, before WordPress 5.2 is officially released.

Developer Notes

WordPress 5.2 has lots of refinements to polish the developer experience. To keep up, subscribe to the Make WordPress Core blog and pay special attention to the developers notes for updates on those and other changes that could affect your products.

How to Help

Do you speak a language other than English? Help us translate WordPress into more than 100 languages!

If you think you’ve found a bug, you can post to the Alpha/Beta area in the support forums. We’d love to hear from you! If you’re comfortable writing a reproducible bug report, file one on WordPress Trac, where you can also find a list of known bugs.


The wonderful thing
about betas, is betas
are wonderful things.
🐯

WordPress 5.2 Beta 1

WordPress 5.2 Beta 1 is now available!

This software is still in development, so we don’t recommend you run it on a production site. Consider setting up a test site to play with the new version.

You can test the WordPress 5.2 Beta two ways:

WordPress 5.2 is slated for release on April 30, and we need your help to get there. Here are some of the big items to test so we can find as many bugs as possible in the coming weeks.

Block Editor

The block editor has received significant performance improvements since WordPress 5.1, shaving 35% off the load time for massive posts, and cutting the keypress time (how responsive it feels when you’re typing) in half!

Accessibility continues to improve, too. The block editor now supports your browser’s reduced motion settings. The post URL slug has better labelling and help text. The focus styling for keyboard navigating through landmarks is clearer and more consistent. There are a variety of new speak messages, and existing messages have been tweaked for more useful screen-reader behaviour.

We’ve added several new blocks:

  • An RSS block
  • An Amazon Kindle embed block
  • A Search block
  • A Calendar block
  • A Tag Cloud block

To help you keep track of these blocks, and only show the ones you need, there’s a new block management tool to switch blocks on and off.

Block Management Modal

We’re constantly working on existing blocks, too. There are hundreds of bug fixes and improvements in the block editor, you can read more about them in the Gutenberg plugin releases: 4.9, 5.0, 5.1, 5.2, and 5.3.

The WordPress Mobile Apps

The block editor isn’t just for websites, either. The WordPress mobile apps now include an experimental version of a built-in block editor. This is still under development, but you can try it out now!

Site Health Check

Site Health Check is an ongoing project aimed at improving the stability and performance of the entire WordPress ecosystem.

The first phase of this project (originally scoped for WordPress 5.1) is now included in WordPress 5.2. For the first time, WordPress will catch and pause the problem code, so you can log in to your Dashboard and see what the problem is (#44458). Before, you’d have to FTP in to your files or get in touch with your host.

In addition, we’re adding a new Health Check tool to your Dashboard. Visit the Tools menu and click on Health Check to get information that can help improve the speed and security of your site.

PHP Version Bump

With this release, WordPress will increase its minimum supported PHP version to 5.6. To help you check if you’re prepared for this change, WordPress 5.2 will show you a warning and help you upgrade your version of PHP, if necessary.

For Developers

  • Plugins can now specify the minimum version of PHP that they support, so you can safely modernise your development practices without risking breaking your users’ sites. (#40934)
  • We’ve added the sodium_compat library, which provides backwards compatibility for the Sodium-based cryptography library added in PHP 7.2. (#45806)
  • There’s a new release of Dashicons, the WordPress Dashboard icon font. There are 25 new icons for you to use! (#41074)
  • You can now pass a label to get_search_form(), improving accessibility. (#42057)

There have been 130 tickets closed in WordPress 5.2 so far, with numerous small bug fixes and improvements to help smooth your WordPress experience.

Keep your eyes on the Make WordPress Core blog for developer notes (which are assigned the dev-notes tag) in the coming weeks detailing other changes in 5.2 that you should be aware of.

How to Help

Do you speak a language other than English? Help us translate WordPress into more than 100 languages!

If you think you’ve found a bug, you can post to the Alpha/Beta area in the support forums. We’d love to hear from you! If you’re comfortable writing a reproducible bug report, file one on WordPress Trac, where you can also find a list of known bugs.


With each new release,
bearing multiple betas;
We fix, then we fly.

WordPress 5.1.1 Security and Maintenance Release

WordPress 5.1.1 is now available! This security and maintenance release introduces 10 fixes and enhancements, including changes designed to help hosts prepare users for the minimum PHP version bump coming in 5.2.

This release also includes a pair of security fixes that handle how comments are filtered and then stored in the database. With a maliciously crafted comment, a WordPress post was vulnerable to cross-site scripting.

WordPress versions 5.1 and earlier are affected by these bugs, which are fixed in version 5.1.1. Updated versions of WordPress 5.0 and earlier are also available for any users who have not yet updated to 5.1.

Props to Simon Scannell of RIPS Technologies who discovered this flaw independent of some work that was being done by members of the core security team. Thank you to all of the reporters for privately disclosing the vulnerabilities, which gave us time to fix them before WordPress sites could be attacked.

Other highlights of this release include:

  • Hosts can now offer a button for their users to update PHP.
  • The recommended PHP version used by the “Update PHP” notice can now be filtered.
  • Several minor bug fixes.

You can browse the full list of changes on Trac.

WordPress 5.1.1 was a short-cycle maintenance release. Version 5.1.2 is expected to follow a similar two week release cadence.

You can download WordPress 5.1.1 or visit Dashboard → Updates and click Update Now. Sites that support automatic background updates have already started to update automatically.

In addition to the security researcher mentioned above, thank you to everyone who contributed to WordPress 5.1.1:

Aaron Jorbin, Alex Concha, Andrea Fercia, Andy Fragen, Anton Vanyukov, Ben Bidner, bulletdigital, David Binovec, Dion Hulse, Felix Arntz, Garrett Hyder, Gary Pendergast, Ian Dunn, Jake Spurlock, Jb Audras, Jeremy Felt, Johan Falk, Jonathan Desrosiers, Luke Carbis, Mike Schroder, Milan Dinić, Mukesh Panchal, Paul Biron, Peter Wilson, Sergey Biryukov, and Weston Ruter.

WordPress 5.1 “Betty”

A Little Better Every Day

Version 5.1 of WordPress, named “Betty” in honour of acclaimed jazz vocalist Betty Carter, is available for download or update in your WordPress dashboard.

Following WordPress 5.0 — a major release which introduced the new block editor — 5.1 focuses on polish, in particular by improving the overall performance of the editor. In addition, this release paves the way for a better, faster, and more secure WordPress with some essential tools for site administrators and developers.

Site Health

With security and speed in mind, this release introduces WordPress’s first Site Health features. WordPress will start showing notices to administrators of sites that run long-outdated versions of PHP, which is the programming language that powers WordPress.

When you install new plugins, WordPress’s Site Health features will check them against the version of PHP you’re running. If the plugin requires a version that won’t work with your site, WordPress will keep you from installing that plugin.

Editor Performance

Introduced in WordPress 5.0, the new block editor continues to improve. Most significantly, WordPress 5.1 includes solid performance improvements within the editor. The editor should feel a little quicker to start, and typing should feel smoother.

Expect more performance improvements in the next couple of releases.


Developer Happiness

Multisite Metadata

5.1 introduces a new database table to store metadata associated with sites and allows for the storage of arbitrary site data relevant in a multisite / network context.

Cron API

The Cron API has been updated with new functions to assist with returning data and includes new filters for modifying cron storage. Other changes in behavior affect cron spawning on servers running FastCGI and PHP-FPM versions 7.0.16 and above.

New JS Build Processes

WordPress 5.1 features a new JavaScript build option, following the large reorganisation of code that started in the 5.0 release.

Other Developer Goodness

Miscellaneous improvements include:

  • Updates to values for the WP_DEBUG_LOG constant
  • New test config file constant in the test suite, new plugin action hooks
  • Short-circuit filters for wp_unique_post_slug(), WP_User_Query, and count_users()
  • A new human_readable_duration function
  • Improved taxonomy metabox sanitization
  • Limited LIKE support for meta keys when using WP_Meta_Query
  • A new “doing it wrong” notice when registering REST API endpoints

…and more!


The Squad

This release was led by Matt Mullenweg, along with Gary Pendergast as Senior Code Reshuffler and Poet. They received wonderful assistance from the following 561 contributors for this release, 231 of whom were making their first ever contribution! Pull up some Betty Carter on your music service of choice, and check out some of their profiles:

0x6f0, 1265578519, 1naveengiri, 360zen, aardrian, Aaron Jorbin, Abdullah Ramzan, Abhay Vishwakarma, Abhijit Rakas, Achal Jain, achbed, Adam Silverstein, Ajit Bohra, Alain Schlesser, aldavigdis, alejandroxlopez, Alex, Alex Shiels, Alexander Botteram, Alexandru Vornicescu, alexgso, All, allancole, Allen Snook, Alvaro Gois dos Santos, Ana Cirujano, Anantajit JG, Andrés, Andrea Fercia, Andrea Gandino, Andrea Middleton, andrei0x309, andreiglingeanu, Andrew Duthie, Andrew Lima, Andrew Nacin, Andrew Nevins, Andrew Ozz, Andrey Savchenko, Andy Fragen, Andy Meerwaldt, Angelika Reisiger, Antal Tettinger, antipole, Anton Timmermans, Antonio Villegas, antonioeatgoat, Anwer AR, Arun, Ashar Irfan, ashokrd2013, Ayesh Karunaratne, Ayub Adiputra, Barry Ceelen, Behzod Saidov, benhuberman, Benoit Chantre, benvaassen, Bhargav Mehta, bikecrazyy, Birgir Erlendsson, BjornW, Blair jersyer, blob, Blobfolio, bobbingwide, boblinthorst, Boone Gorges, Boro Sitnikovski, Brad Parbs, Bradley, bramheijmink, Brandon Kraft, Brandon Payton, Brent Swisher, Brian Richards, bridgetwillard, Brooke., bruceallen, Burhan Nasir, Bytes.co, Caleb Burks, Calin Don, campusboy, carolinegeven, ccismaru, chasewg, Chetan Prajapati, Chouby, ChriCo, chriscct7, Christopher Spires, claudiu, Clifford Paulick, Code Clinic, codegrau, coleh, conner_bw, Corey McKrill, croce, Csaba (LittleBigThings), Cyrus Collier, Daniel Bachhuber, Daniel James, Daniel Koskinen, Daniel Richards, Daniele Scasciafratte, danimalbrown, Danny Cooper, Danny de Haan, Darko A7, Darren Ethier (nerrad), Dave Pullig, David A. Kennedy, David Anderson, David Binovec, David Cramer, David Herrera, David Lingren, David Shanske, David Stone, dekervit, Denis Yanchevskiy, Dennis Snell, designsimply, dfangstrom, Dhanendran, Dharmesh Patel, Dhaval kasavala, Dhruvin, DiedeExterkate, Dilip Bheda, dingo_d, Dion Hulse, dipeshkakadiya, Dominik Schilling, Donncha O Caoimh, dontstealmyfish, Drew Jaynes, Drivingralle, drywallbmb, dschalk, dsifford, eamax, eArtboard, edo888, edocev, ElectricFeet, Ella Van Durpe, Eric Andrew Lewis, Eric Daams, Erich Munz, Erick Hitter, ericmeyer, etoledom, Evan Solomon, Evangelos Athanasiadis, ever, everyone, Faisal Alvi, Felipe Elia, Felix Arntz, Fernando Claussen, flipkeijzer, Florian TIAR, folio, FPCSJames, Frank Klein, frOM, fuchsws, fullyint, Gabriel Maldonado, Gareth, Garrett Hyder, Gary Jones, Gennady Kovshenin, Gerhard Potgieter, Girish Panchal, GM_Alex, gnif, graymouser, greg, Grzegorz (Greg) Ziółkowski, Guido, GutenDev, Hafiz Rahman, Hai@LiteSpeed, Hans-Christiaan Braun, Hardeep Asrani, Hardik Amipara, Harsh Patel, haruharuharuby, Heather Burns, Helen Hou-Sandi, Henry Wright, Herre Groen, hitendra, Hitendra Chopda, Ian Belanger, Ian Dunn, ibantxillo, Ignacio Cruz Moreno, Igor, Igor Benic, imath, ionvv, Irene Strikkers, isabel104, ishitaka, Ivan Mudrik, J.D. Grimes, Jack Reichert, Jacob Peattie, James Nylen, janak Kaneriya, janalwin, Janki Moradiya, janthiel, Jason Caldwell, javorszky, Jaydip Rami, Jayman Pandya, Jb Audras, Jeff Farthing, Jeffrey de Wit, Jeffrey Paul, Jennifer M. Dodd, Jenny, Jeremey, Jeremy Felt, Jeremy Herve, Jeremy Pry, Jeremy Scott, Jesper V Nielsen, Jesse Friedman, Jimmy Comack, Jip Moors, Jiri Hon, JJJ, joanrho, Job, Joe Bailey-Roberts, Joe Dolson, Joe Hoyle, Joe McGill, Joel James, Joen Asmussen, John Blackbourn, John Godley, johnalarcon, johnpgreen, johnschulz, Jonathan Champ, Jonathan Desrosiers, joneiseman, Jonny Harris, Joost de Valk, Jorge Costa, Joseph Scott, JoshuaWold, Joy, jpurdy647, jrdelarosa, jryancard, Juhi Patel, Julia Amosova, juliemoynat, Juliette Reinders Folmer, Junaid Ahmed, Justin Sainton, Justin Sternberg, Justin Tadlock, K.Adam White, kapteinbluf, keesiemeijer, Kelly Dwan, kelvink, khaihong, Kiran Potphode, Kite, kjellr, kkarpieszuk, kmeze, Knut Sparhell, konainm, Konstantin Obenland, Konstantinos Xenos, kristastevens, krutidugade, laghee, Laken Hafner, Lance Willett, laurelfulford, lbenicio, Leander Iversen, leemon, lenasterg, lisannekluitmans, lizkarkoski, Luca Grandicelli, LucasRolff, luciano, Luminus, Mário Valney, maartenleenders, macbookandrew, Maja Benke, Mako, mallorydxw-old, Manuel Augustin, manuel_84, Marc Nilius, marcelo2605, Marco Martins, marco.marsala, Marcus Kazmierczak, marcwieland95, Marius L. J., mariusvw, Mariyan Belchev, Mark Jaquith, Mathieu Sarrasin, mathieuhays, Matt Cromwell, Matt Gibbs, Matt Martz, Matthew Boynes, Matthew Riley MacPherson, mattyrob, mcmwebsol, Mel Choyce, mensmaximus, mermel, metalandcoffee, Micah Wood, Michael Nelson, Michiel Heijmans, Migrated to @sebastienserre, Miguel Fonseca, Miguel Torres, mihaiiceyro, mihdan, Mike Gillihan, Mike Jolley, Mike Schroder, Milan Dinić, Milan Ivanovic, Milana Cap, Milind More, mirkoschubert, Monika Rao, Monique Dubbelman, moto hachi ( mt8.biz ), mrmadhat, Muhammad Kashif, Mukesh Panchal, MultiformeIngegno, Muntasir Mahmud, munyagu, MyThemeShop, mzorz, nadim0988, nandorsky, Naoki Ohashi, Naoko Takano, nataliashitova, Nate Allen, Nathan Johnson, ndavison, Ned Zimmerman, Nextendweb, Nick Diego, Nick Halsey, Nick Momrik, Nick the Geek, Nicolas Figueira, Nicolas GUILLAUME, Nicolle Helgers, Nidhi Jain, Niels Lange, Nikhil Chavan, Nilambar Sharma, Noam Eppel, notnownikki, odyssey, Omar Reiss, Omkar Bhagat, on, others, Ov3rfly, Paal Joachim Romdahl, palmiak, panchen, parbaugh, Parham Ghaffarian, Pascal Birchler, Pascal Casier, Paul Bearne, Paul Biron, Paul Paradise, Paul Schreiber, Perdaan, Peter Putzer, Peter Wilson, Petter Walbø Johnsgård, Pierre Saïkali, Pieter Daalder, Piyush Patel, poena, Pramod Jodhani, Prashant Baldha, Pratik K. Yadav, Pratik K. Yadav, precies, Presskopp, Presslabs, PressTigers, programmin, Punit Patel, Purnendu Dash, qcmiao, Rachel Baker, Rachel Cherry, Rachel Peter, Rafsun Chowdhury, Rahul Prajapati, Raja Mohammed, Ramanan, Rami Yushuvaev, Ramiz Manked, ramonopoly, RavanH, redcastor, remyvv, rensw90, rhetorical, Riad Benguella, Rian Rietveld, Richard Tape, Ricky Lee Whittemore, Rinku Y, Rishi Shah, Robbie, robdxw, Robert Anderson, Robin Cornett, Robin van der Vliet, Ryan McCue, Ryan Paul, Ryan Welcher, ryotsun, Sébastien SERRE, Saša, sagarnasit, Sami Ahmed Siddiqui, Sami Keijonen, Samuel Wood (Otto), sarah semark, Sayed Taqui, Scott Lee, Scott Reilly, Sean Hayes, Sebastian Kurzynoswki, Sebastian Pisula, Sergey Biryukov, Shamim Hasan, Shane Eckert, Sharaz Shahid, Shashwat Mittal, Shawn Hooper, sherwood, Shital Marakana, Shiva Poudel, Simon Prosser, sjardo, skoldin, slilley, slushman, Sonja Leix, sonjanyc, Soren Wrede, spartank, spyderbytes, Stanimir Stoyanov, Stanko Metodiev, stazdotio, Stephen Edgar, Stephen Harris, stevenlinx, Storm Rockwell, Stoyan Kostadinov, strategio, Subrata Sarkar, Sultan Nasir Uddin, swift, Takahashi Fumiki, Takayuki Miyauchi, Tammie Lister, Taylor Lovett, teddytime, Terri Ann, terwdan, tharsheblows, the, ThemeZee, Thomas Patrick Levy, Thomas Vitale, thomaswm, Thorsten Frommen, Thrijith Thankachan, Tiago Hillebrandt, tigertech, Tim Havinga, Tim Hengeveld, Timmy Crawford, Timothy Jacobs, titodevera, Tkama, to, Tobias Zimpel, Tom J Nowell, TomHarrigan, Tommy, tonybogdanov, Tor-Bjorn Fjellner, TorontoDigits, Toshihiro Kanai, Towhidul Islam, transl8or, Ulrich, upadalavipul, Usman Khalid, Utsav tilava, uttam007, Vaishali Panchal, Valérie Galassi, valchovski, vishaldodiya, vnsavage, voneff, warmlaundry, wbrubaker, Weston Ruter, who, Will Kwon, William Earnhardt, williampatton, wpcs, wpzinc, xhezairi, Yahil Madakiya, Yoav Farhi, Yui, YuriV, Zane Matthew, and zebulan.

Finally, thanks to all the community translators who worked on WordPress 5.1. Their efforts bring WordPress 5.1 fully translated to 34 languages at release time, with more on the way.

If you want to follow along or help out, check out Make WordPress and our core development blog.

Thanks for choosing WordPress!