Add change log

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
diff --git a/ChangeLog.d/tls13-without-tickets.txt b/ChangeLog.d/tls13-without-tickets.txt
new file mode 100644
index 0000000..8ceef21
--- /dev/null
+++ b/ChangeLog.d/tls13-without-tickets.txt
@@ -0,0 +1,3 @@
+Bugfix
+   * Fix TLS 1.3 client build and runtime when support for session tickets is
+     disabled (MBEDTLS_SSL_SESSION_TICKETS configuration option). Fixes #6395.