pfSense 2.0.2 is a maintenance release with some bug and security fixes since 2.0.1 release. You can upgrade from any previous release to 2.0.2.
Heads up for those upgrading
Auto Update URL – For those upgrading from a prior release, first please make sure you’re on the correct auto-update URL. Tens of thousands of installs were from 2.0 pre-release snapshots which had their update URL set to the snapshot server rather than the stable release updates. Others had manually set their architecture incorrectly at some point and had failed upgrades because of it. Just browse to System>Firmware, Updater Settings tab. From the “Default Auto Update URLs” drop down box, pick either the stable i386 or amd64 depending on which version you have installed, and click Save. Then you can use the auto-update and be ensured you’re pulling from the correct location.
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