Added description of change to the Changelog
Also clarified some comments following review.
diff --git a/ChangeLog b/ChangeLog
index 8a736f9..bb50581 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,15 @@
mbed TLS ChangeLog (Sorted per branch, date)
+= mbed TLS 2.2.1 released 2015-12-xx
+
+Changes
+ * To avoid dropping an entire DTLS datagram if a single record in a datagram
+ is invalid, we now only drop the record and look at subsequent records (if
+ any are presemt) in the same datagram to avoid interoperability issues.
+ Previously the library was dropping the entire datagram. Where a record is
+ unexpected, the function mbedtls_ssl_read_record() will now return
+ MBEDTLS_ERR_SSL_UNEXPECTED_RECORD.
+
= mbed TLS 2.2.0 released 2015-11-04
Security