Little Snitch 5 for macOS Big Sur
The previous version 4 of Little Snitch intercepted network traffic by means of a Network Kernel Extension. This type of kernel extension is deprecated in macOS Big Sur and no longer loads in the default configuration.
Little Snitch 5 is based on the new Network Extension framework instead, which is fully supported on macOS Big Sur.
Learn more what’s new in Little Snitch 5
When will Little Snitch 5 be available?
Little Snitch 5 is currently available as a beta version (click the Download button at the bottom of this page to get your copy). The final version of Little Snitch 5 will be released on November 2, 2020.
All customers who purchased Little Snitch 4 within a one-year period prior to the final release of Little Snitch 5 will receive the upgrade for free. If you purchased Little Snitch 4 before that period, you can get the upgrade at a reduced price.