Update certain firewall rules necessary ?

[amd.64]

I created firewall rules for GeoIP blocking and spam blocking using spamhaus.

Is it necessary to update these rules every so often, or do they update on their own or is an update not needed at all?

Thank You

[Patrick M. Hausen]

When you create the alias you define how frequently the source is pulled for updates.

I use 6 hours for most.