uBlock Origin 1.9.15b1

Changes:

Some work has been done on the element picker:

• can now handle procedural cosmetic filters (:has, matches-css, :xpath), and also the special operator :style -- matching elements of such filters will be highlighted like normal CSS selector-based filters.
• an invalid filter in the input field will now trigger a visual cue: the background of the input field will be reddish.
• the number of elements on the current page matching the filter in the input field is now displayed in the bottom right corner of the input field.
• the preview mode is now sticky, i.e. you can modify the filter in the input field without being kicked out of preview mode.

Closed as fixed:

Chromium

• uBlock blocking domain but not showing it in the dynamic filtering pane

Core

• ##iframe[id][style] hides element picker
• Websocket filters of the form *$websocket are still applied for whitelisted sites
• Hard Mode Issue When Toggling to Medium Mode
• Generic cosmetic filters abruptly not applied
• Automatically lookup site-specific scriptlets: support for entity-based filters was left out, this has been added.
• Element picker and :has() operator
• filters that start with || and end with |