CTR_DRBG documentation: add changelog entry
This is a documentation-only change, but one that users who care about
NIST compliance may be interested in, to review if they're using the
module in a compliant way.
diff --git a/ChangeLog b/ChangeLog
index 3186e58..30a84f1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,11 @@
mbed TLS ChangeLog (Sorted per branch, date)
+= mbed TLS 2.16.x branch released xxxx-xx-xx
+
+Changes
+ * Clarify how the interface of the CTR_DRBG module relates to
+ NIST SP 800-90A.
+
= mbed TLS 2.16.3 branch released 2019-09-06
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