Little Snitch 5 Released for macOS Big Sur With New Design, Improved Network Traffic Monitoring, and More
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. 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.
The headline new feature of Little Snitch 5 is integration of new network filter technologies introduced in 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 app has also been redesigned for macOS Big Sur.
Little Snitch 5 now captures connection information in the background. The app no longer requires the Network Monitor application to be running in order to collect this information, resulting in reduced memory and CPU consumption. The new monitoring system is now capable of holding traffic information from up to one year ago, versus one hour previously.
System administrators now have the ability to configure settings via a command line interface, making Little Snitch scriptable for the first time. This interface provides both historical and real-time log data of all network connections.
The app has also moved to drag-and-drop installation, meaning that restarting is no longer necessary for installation or updates.
Little Snitch 5 is available now on Objective Development's website for $45 per individual license. Existing customers who purchased Little Snitch 4 after November 1, 2019 can upgrade to Little Snitch 5 for free. Customers who purchased Little Snitch 4 prior to November 1, 2019 are able to purchase Little Snitch 5 for a reduced price of $25.
Little Snitch 5 requires macOS Big Sur. Users still running macOS Catalina or older can still purchase and run Little Snitch 4, which includes a free update to Little Snitch 5, giving users the freedom to choose when to upgrade.
Popular Stories
We're getting closer to the launch of the final major iOS update of the year, with Apple set to release iOS 26.2 in December. We've had three betas so far and are expecting a fourth beta or a release candidate this week, so a launch could follow as soon as next week.
Past Launch Dates
Apple's past iOS x.2 updates from the last few years have all happened right around the middle of the...
Apple is expected to launch a new foldable iPhone next year, based on multiple rumors and credible sources. The long-awaited device has been rumored for years now, but signs increasingly suggest that 2026 could indeed be the year that Apple releases its first foldable device.
Subscribe to the MacRumors YouTube channel for more videos.
Below, we've collated an updated set of key details that ...
Apple is encouraging iPhone users who are still running iOS 18 to upgrade to iOS 26 by making the iOS 26 software upgrade option more prominent.
Since iOS 26 launched in September, it has been displayed as an optional upgrade at the bottom of the Software Update interface in the Settings app. iOS 18 has been the default operating system option, and users running iOS 18 have seen iOS 18...
Apple AI chief John Giannandrea is stepping down from his position and retiring in spring 2026, Apple announced today.
Giannandrea will serve as an advisor between now and 2026, with former Microsoft AI researcher Amar Subramanya set to take over as vice president of AI. Subramanya will report to Apple engineering chief Craig Federighi, and will lead Apple Foundation Models, ML research, and ...
Netflix has quietly removed the ability to cast content from its mobile apps to most modern TVs and streaming devices, including newer Chromecast models and the Google TV Streamer.
The change was first spotted by users on Reddit and confirmed in an updated Netflix support page (via Android Authority), which now states that the streaming service no longer supports casting from mobile devices...
2026 could be a bumper year for Apple's Mac lineup, with the company expected to announce as many as four separate MacBook launches. Rumors suggest Apple will court both ends of the consumer spectrum, with more affordable options for students and feature-rich premium lines for users that seek the highest specifications from a laptop.
Below is a breakdown of what we're expecting over the next ...
Apple's iPhone 17 lineup is selling well enough that Apple is on track to ship more than 247.4 million total iPhones in 2025, according to a new report from IDC.
Total 2025 shipments are forecast to grow 6.1 percent year over year due to iPhone 17 demand and increased sales in China, a major market for Apple.
Overall worldwide smartphone shipments across Android and iOS are forecast to...
Cyber Week is here, and you can find popular Apple products like AirPods, iPad, Apple Watch, and more at all-time low prices. In this article, the majority of the discounts will be found on Amazon.
Note: MacRumors is an affiliate partner with some of these vendors. When you click a link and make a purchase, we may receive a small payment, which helps us keep the site running.
Specifically,...
The calendar has turned to December, and the quieter year-end holiday season is now upon us. Nevertheless, we can still expect a few things from Apple this month.
Apple previously announced that iOS 26.2 will be released to the general public in December, and we can expect corresponding updates to be released as well, including iPadOS 26.2, macOS 26.2, watchOS 26.2, tvOS 26.2, and visionOS...
Apple today seeded the release candidate versions of upcoming iOS 26.2 and iPadOS 26.2 updates to developers and public beta testers, with the software coming two weeks after Apple seeded the third betas. The release candidates represent the final versions of iOS 26.2 and iPadOS 26.2 that will be provided to the public if no further bugs are found during this final week of testing....
