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                        in a optout, delegation only zone with no secure
                        delegations. [RT #22007]

                        falling back to TCP on UDP timeouts when
                        ixfr-from-differences was set. [RT #21595]

                        it was called multiple times. [RT #21942]

                        interfaces at reboot. See bin/tests/system/README
                        for details.

2946.   [doc]           Document the default values for the minimum and maximum                         zone refresh and retry values in the ARM. [RT #21886]

2944.   [maint]         Remove ORCHID prefix from built in empty zones.
                        [RT #21772]