auth upgrade docs: note removal of do-ipv6-additional-processing

closes #10127

diff --git a/docs/upgrading.rst b/docs/upgrading.rst
index 708741dfe1043870087a45772a4c7b003d10e321..edfd248f72043e0a175fc07017a0f478aa069767 100644 (file)
--- a/docs/upgrading.rst
+++ b/docs/upgrading.rst
@@ -83,6 +83,8 @@ Removed features
 SOA autofilling (i.e. allowing incomplete SOAs in the database) and the API set-ptr feature, that both were deprecated in earlier releases, have now been removed.
 Please run ``pdnsutil check-all-zones`` to check for incomplete SOAs.
 
+The :ref:`setting-do-ipv6-additional-processing` setting was removed. IPv6 additional processing now always happens when IPv4 additional processing happens.
+
 4.3.1 to 4.3.2
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