Add a CHANGES note for [GL #4171]

diff --git a/CHANGES b/CHANGES
index 108a5044a4f2de2b02c8f6ed6dbfd14204b4c5d1..4a0345cdb67355ce1a5b52451485591527413212 100644 (file)
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,6 @@
+6206.  [bug]           Add shutdown checks in dns_catz_dbupdate_callback() to
+                       avoid a race with dns_catz_shutdown_catzs(). [GL #4171]
+
 6205.  [bug]           Restore support to read legacy HMAC-MD5 K file pairs.
                        [GL #4154]