• Introduces the ability for a third party to cease all further data collection and output at any point by calling do_action( 'qm/cease' ), for example to prevent memory exhaustion during long-running operations
• Reduces the width of the admin toolbar menu item by using lower decimal precision
• Improves the Template panel information when a block theme is in use (for Full Site Editing)
• Improves the performance and accuracy of stack traces and calling function information
• Corrects some formatting of numbers and error messages in the REST API output
• Adds more useful information when a persistent object cache or opcode cache isn't in use
• Improves clarity in the Scripts and Styles panels when any of the URLs include a port number
• Introduces the qm/component_context/{$type} filter to complement qm/component_name/{$type} and qm/component_dirs
• Improves internal code quality, internationalisation, and further reduces overall memory usage