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Complete. if you are upgrading a clustered system, see the Notes section at the top of this document for upgrading each slave node.
Before upgrading from from 3.6 or earlier
Consider upgrading to sipXecs 3.10 then following instructions from there.
Before upgrading from 3.10.x
The local domain bind zone is "emptied", if you are using the system as a DNS server, you should copy or backup your zone file before the update. It doesn't effect other zone files on the system, just the one sipx is attached to.
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