diff --git a/CHANGES b/CHANGES
index b9c2042a0e..d91551c1b4 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,6 @@
+5738.	[bug]		Enable idn2 UseSTD3ASCIIRules=true to implement
+			additional unicode validity checks. [GL #1610]
+
 5737.	[bug]		Address Coverity warning in lib/dns/dnssec.c.
 			[GL #2935]
 
diff --git a/doc/notes/notes-current.rst b/doc/notes/notes-current.rst
index 7f100cec75..c3847909d4 100644
--- a/doc/notes/notes-current.rst
+++ b/doc/notes/notes-current.rst
@@ -73,6 +73,11 @@ Feature Changes
 - Zone transfers over TLS (XoT) now need "dot" Application-Layer Protocol
   Negotiation (ALPN) tag to be negotiated, as required by the RFC 9103. :gl: `#2794`
 
+- `UseSTD3ASCIIRules`_ is now enabled for IDN support. This enables additional
+  validation rules for domains and hostnames within dig.  :gl:`#1610`
+
+.. _UseSTD3ASCIIRules: http://www.unicode.org/reports/tr46/#UseSTD3ASCIIRules
+
 Bug Fixes
 ~~~~~~~~~