WordPress 5.5.1 Fixes Millions of Broken Sites

WordPress revealed new data that describes why WordPress 5.5 negatively affected thousands and thousands of web sites, a staggering quantity. WordPress is publishing a upkeep launch, model 5.5.1. It is designed to function a patch to provide time for plugin and theme builders to replace their software program.

The announcement about what went mistaken linked to a spreadsheet naming a whole bunch of plugins and themes that had been affected.

The spreadsheet additionally notes what the particular situation is for every plugin and theme, which can assist software program builders repair their plugins and themes.

WordPress 5.5.1 Maintenance Release September 1, 2020

The WordPress 5.5.1 upkeep launch is designed to cease websites from breaking. But the errors will nonetheless have to be fastened.

WordPress described the difficulty like this:

“In WordPress 5.5 the global JavaScript objects listed below were removed without being deprecated. WordPress 5.5.1 adds a backfill for these globals so they no longer cause JavaScript errors.”


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Plugin and theme builders have till March 2021 to patch the code. Failure to patch the code will end in one other spherical of web site failures.

According to WordPress:

“The plan is to remove this fallback code in two major versions, so this will be deleted in WordPress 5.7. This gives plugin and theme developers ample time to remove the conflicting code and switch to using wp.i18n”

Millions of Websites Affected

The spreadsheet revealed the beforehand unknown quantity of websites that had been damaged.

There initially was informal hypothesis that the affect was comparatively small and restricted to 1000’s of web sites. But that wasn’t the case.

WordPress 5.5 negatively impacted thousands and thousands of web sites.

It is for that motive patch was urgently launched right this moment, September 1, 2020.


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Some Plugins Already Fixed

Not all of the plugins on the record proceed to be damaged. Some have been fastened.

Among the affected plugins with thousands and thousands of customers:

  • SiteOrigin Widgets Bundle +1 million customers
  • Advanced Custom Fields +1 million customers
  • Ninja Forms Contact Form – The Drag and Drop Form Builder for WordPress +1 million customers

Partial List of Plugins Affected by WordPress 5.5

  • WordPress Gallery Plugin – NextGEN Gallery
  • Polylang
  • Child Theme Configurator
  • Simple Custom CSS and JS
  • Toolset Types – Custom Post Types, Custom Fields and Taxonomies
  • Max Mega Menu
  • WP AutoTerms: Privacy Policy Generator, Cookie Notice Banner, Terms & Conditions Generator
  • YITH WooCommerce Wishlist
  • Ocean Extra
  • WordPress web optimization Plugin – Rank Math
  • Meta Box – WordPress Custom Fields Framework
  • Hummingbird – Speed Optimize, Cache, Minify & Defer Critical CSS & JavaScript
  • Content Views – Post Grid & List for WordPress

Popular Themes Affected by WordPress 5.5:

  • Astra +1 million customers
  • Storefront +200,000 customers
  • Hestia +100,000 customers
  • Neve +100,000 customers
  • ColorMag +100,000 customers
  • Customizr
  • Hueman
  • Zakra

There had been many extra themes that had been affected. See hyperlink beneath for lists of all affected themes.

Update to WordPress to 5.5.1

This upkeep replace is designed to patch a variety of bugs that had been found after 5.5 was launched. For people who rolled again their websites to a earlier model of WordPress as a result of 5.5 was breaking their websites, that is the model that needs to be downloaded. Problems that had been found have been fastened.


Official WordPress Announcement of What Went Wrong

Deprecated JavaScript Globals

Spreadsheet with Full List of Affected Plugins and Themes

List of Themes Affected by WordPress 5.5


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