WordPress Release: 6.7.1

TL;DR

WordPress 6.7.1 is a maintenance release that addresses several important bugs and issues from the recent 6.7 release. This update fixes problems with the HTML API, Interactivity API, customizer layout, media handling, internationalization, and more. Key improvements include fixing login screen compatibility with plugins, resolving category selection issues in the classic editor, and addressing performance concerns with image processing. This release is recommended for all WordPress 6.7 users to ensure proper functionality and compatibility.

Highlight of the Release

• Fixed login screen compatibility with plugins that customize the login logo
• Resolved issues with category selection in the classic editor
• Improved image handling and display with sizes=auto attribute
• Fixed HTML API DOCTYPE handling in serialized output
• Resolved Interactivity API behavior with missing state negation

Migration Guide

No specific migration steps are required for this maintenance release. WordPress 6.7.1 is a bug fix release that addresses issues from the 6.7 release and does not introduce any breaking changes or require special migration procedures.

Simply update your WordPress installation through the dashboard or via your preferred method to benefit from these fixes.

Upgrade Recommendations

It is strongly recommended that all WordPress 6.7 users upgrade to version 6.7.1 as soon as possible. This maintenance release addresses several important bugs and issues that could affect site functionality, performance, and compatibility with plugins.

The update process is straightforward and should not cause any disruption to your site. As always, it's good practice to back up your site before performing any update.

Bug Fixes

HTML API

• Fixed missing DOCTYPE in serialized/normalized HTML output when using WP_HTML_Processor::serialize on a full document
• Fixed an edge case where public and system identifiers containing double quotes were not properly quoted with single quotes

Interactivity API

• Fixed behavior of negation operator with directives to missing paths to ensure consistent behavior between client and server
• Removed redundant server state from Interactivity Router that was causing errors

User Interface

• Fixed layout issues in customizer accordions to avoid horizontal scrolling
• Made chevron icons part of the clickable control surface in customizer accordions
• Resolved padding issues causing overflow on accordion headings
• Reverted selector change in login heading CSS to maintain compatibility with plugins that customize the login logo

Editor

• Fixed JavaScript functionality to select, save, and update categories on the classic Edit Post screen

Media

• Fixed performance issue where expensive image processing functions were being run twice when using GD library
• Prevented images with sizes=auto from being displayed at a downsized width (300px) in supporting browsers

Internationalization

• Fixed untranslatable strings in nav-menu.js by wrapping them in JS translation functions
• Improved translator comments in nav-menu.js for better context
• Fixed issues with load_*_textdomain() functions when called after just-in-time loading of translations
• Ensured proper handling of translation overrides for the default language

Security

• Fixed an edge case where array indexes were unexpectedly missing when wp_salt() was called recursively

New Features

No new features were introduced in this maintenance release. WordPress 6.7.1 focuses on fixing bugs and addressing issues from the 6.7 release.

Security Updates

This release includes a fix for an edge case in the wp_salt() function where array indexes could be unexpectedly missing when the function was called recursively. This ensures that cryptographic salts are properly handled and flagged when duplicates are detected, maintaining the security integrity of WordPress installations.

Performance Improvements

Media Performance

• Optimized image processing by avoiding running expensive GD library functions twice when creating new image files
• This improvement affects the handling of various image formats, including the recently added AVIF support

Translation Loading

• Improved the efficiency of translation loading when custom paths are set
• Fixed redundant translation loading attempts in certain scenarios

Impact Summary

WordPress 6.7.1 is a targeted maintenance release that addresses several important issues from the 6.7 release. The fixes span multiple areas of WordPress functionality including the HTML API, Interactivity API, customizer interface, media handling, and internationalization.

Key improvements include:

1. Plugin Compatibility: Fixed login screen CSS selectors to maintain compatibility with plugins that customize the login logo.

2. Editor Functionality: Resolved issues with category selection in the classic editor that were preventing proper saving and updating.

3. Performance: Optimized image processing to avoid running expensive GD library functions twice.

4. User Interface: Fixed layout issues in customizer accordions and improved the clickable areas of controls.

5. Developer Tools: Fixed HTML API DOCTYPE handling and Interactivity API behavior with missing state negation.

6. Internationalization: Improved handling of translations, especially for custom paths and overrides.

These fixes collectively enhance the stability, performance, and user experience of WordPress 6.7, making this update important for all WordPress users.