

Little Snitch 5 now captures connection information in the background. The app has also been redesigned for macOS Big Sur. Objective Development says the app's underlying engine was rebuilt to replace the previous kernel extension-based approach, which is no longer supported by macOS. The headline new feature of Little Snitch 5 is integration of new network filter technologies introduced in macOS Big Sur.

Whenever an app attempts to connect to a server on the internet, Little Snitch shows a connection alert, allowing you to decide whether to allow or deny the connection.

Austrian developer Objective Development today announced the release of Little Snitch 5, a major new version of its popular network monitoring utility on the Mac.
