What's new with PF in 4.1?

Each release since 3.0 has included exciting updates to PF. OpenBSD 4.1 is no different. From enabling keep state and flags S/SA by default, to further synchronizing pfctl command line options with what can be done inside pf.conf, to greater logging flexability and improved anchor support, the PF development team continues to expand PF's usability and functionality.

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