• Add an editor selection UI on the Settings panel.
• Improve the output of missing asset dependencies.
• Improve the output of unsuccessful template parts.
• Handle non-boolean constants such as WP_DEBUG_LOG, which now accepts a path too.
• Add support for touch devices when resizing the panel. (Works alright-ish, probably needs some animation frame work.)
• Apply the same styles to notices, deprecated, and strict errors.
• Some more style resets for compatibility with popular themes.
• Style changes to bring QM inline with WP 5.3's improved button and focus styles.
• More colour contrast and dark mode tweaks.
• Add permalink-related filters to the concerned filters for the Request panel.
• Fix and improve the admin toolbar menu hover colours.
• Add the error count to the panel menu.
• Remove unnecessary use of plural forms added in 3.4.0.
• More CSS resets to avoid overly tall filters in Firefox.
• Improved styling for warning rows.
• Display the log count in the menu item.