Add a ChangeLog entry for Curve22519 N
diff --git a/ChangeLog b/ChangeLog
index 4533644..6f56fae 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -24,6 +24,9 @@
* Improve testing in configurations that omit certain hashes or
public-key algorithms. Includes contributions by Gert van Dijk.
* Improve negative testing of X.509 parsing.
+ * Add the order of the base point as N in the mbedtls_ecp_group structure
+ for Curve25519 (other curves had it already). Contributed by Nicholas
+ Wilson #481
= mbed TLS 2.8.0 branch released 2018-03-16