diff --git a/ChangeLog b/ChangeLog
index 227faed..50fefac 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,15 @@
 mbed TLS ChangeLog (Sorted per branch, date)
 
+= mbed TLS x.x.x branch released xxxx-xx-xx
+
+API changes
+   * Add function mbedtls_net_poll to public API allowing to wait for a
+     network context to become ready for reading or writing.
+   * Add function mbedtls_ssl_check_pending to public API allowing to check
+     if more data is pending to be processed in the internal message buffers.
+     This function is necessary to determine when it is safe to idle on the
+     underlying transport in case event-driven IO is used.
+
 = mbed TLS 2.6.0 branch released 2017-08-10
 
 Security