New
[Status: experimental] A new button ("puzzle" piece icon) is available in the popup panel: uMatrix will offer you the ability to import community-contributed ruleset recipes which are relevant to the current page (see #30). Hopefully there will be many contributions to populate ruleset recipes ready to be used to unbreak sites. I wasn't planning to release this feature at this point, but there were other good changes languishing in beta which I wanted to publish. Some early documentation here.
A tooltip has been added to the global scope selector (*) in the popup panel.
A new setting has been added in the Settings pane: "Disable tooltips".
Changes
The setting "Show the number of distinct requests on the icon" has been changed to "Show the number of blocked resources on the icon": the number of blocked resources is much more useful than the number of distinct resources. This will make it clear now that uMatrix is still blocking stuff even after you think you had configured it to no longer block stuff (example: #938).
The icon badge is back to being enabled by default with new installations of uMatrix.