Resolved
WordPress is planning to update jQuery in a staged process from version 5.5 to 5.7 (read about it here).
With WP 5.5 jQuery Migrate is disabled by default. This will likely trigger jQuery deprecation notices in many plugins and themes. In Toolset, examples of such notices are shown below. The notices don’t affect site functionality, and we have not yet uncovered any functionality that is broken with the update (please report if you find anything).
wp-content/plugins/types/vendor/toolset/toolset-common/res/js/toolset-settings.js: jQuery.fn.load() is deprecated wp-content/plugins/types-access/vendor/toolset/toolset-common/res/js/toolset-settings.js: jQuery.fn.load() is deprecated wp-content/plugins/types/vendor/toolset/types/embedded/resources/js/basic.js: 'ready' event is deprecated wp-content/plugins/types/vendor/toolset/types/resources/js/fields-form.js: 'ready' event is deprecated wp-content/plugins/cred-frontend-editor/library/toolset/cred/embedded/assets/common/js/mvc.js: jQuery.browser is deprecated wp-content/plugins/cred-frontend-editor/library/toolset/cred/embedded/assets/js/cred_form_settings_box.js: jQuery.fn.size() is deprecated; use the .length property
Most of these issues are fixed in the current versions, and the final outstanding notices will be resolved before the deadline of WordPress 5.6.
This plugin released by the core WordPress team will suppress such deprecation notices in the meantime: https://wordpress.org/plugins/enable-jquery-migrate-helper/
