Add a CHANGES note for [GL #4171]

(cherry picked from commit 8887da60ad39366e1b5ad4e6895cc5ab92083545)

diff --git a/CHANGES b/CHANGES
index 19c25c570f978a311f76f8ae038e50a754b82c66..b3df943bef7560bfc1660756423bd7481e57b852 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]