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diff --git a/doc/upgrade.texi b/doc/upgrade.texi
index ab7f7ec..03c3f59 100644
--- a/doc/upgrade.texi
+++ b/doc/upgrade.texi
@@ -10,6 +10,7 @@ The following sections describe procedures for upgrading
between the consecutive Mailfromd releases.
@menu
+* 820-830:: Upgrading from 8.2 to 8.3
* 700-800:: Upgrading from 7.0 to 8.0
* 600-700:: Upgrading from 6.0 to 7.0
* 5x0-600:: Upgrading from 5.x to 6.0
@@ -25,6 +26,28 @@ between the consecutive Mailfromd releases.
* 1x-2x:: Upgrading from 1.x to 2.x
@end menu
+@node 820-830
+@appendixsec Upgrading from 8.2 to 8.3
+@cindex Upgrading from 8.2 to 8.3
+
+ Version 8.3 contains significant improvements in the DNS
+resolver. In particular, it removes arbitrary limits on the sizes
+of the RRs. Consequently, the following configurations statements
+are withdrawn:
+
+@table @code
+@item runtime.max-dns-reply-a
+
+@item runtime.max-dns-reply-ptr
+
+@item runtime.max-dns-reply-mx
+
+@item max-match-mx
+
+@item max-callout-mx
+@end table
+
+
@node 700-800
@appendixsec Upgrading from 7.0 to 8.0
@cindex Upgrading from 7.0 to 8.0

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