Why WordPress Latest Version is Breaking Sites Affecting Thousands of Websites
Thousands of WordPress publishers sites have become broken since updating to WordPress 5.5. WP 5.5 deprecated support for jQuery Migrate may have caused at least 10,000 broken sites. An issue with how themes handle pagination is causing other sites to break after updating to 5.5.
What Kind of Errors Are Sites Experiencing?
The scripts work behind the scenes to make forms, search bars, and drop down menus work.
jQuery Migrate is a library that acts like a bridge for older code to function on WordPress.
However when publishers stick to an older theme, particularly one that is no longer being updated, compatibility issues eventually creep in and that’s what happened with WordPress 5.5.
But you can fix this.
Read more here.