Frequently Asked Questions
No, sorry. Little Snitch 3 already supports a range of eight major OS versions, starting with Mac OS X 10.6 Snow Leopard (released in 2009) up to macOS 10.13 High Sierra.
In order to run Little Snitch on macOS Mojave, Little Snitch 4 is required. Owners of a version 3 license are eligible for a discounted upgrade to version 4.