diff --git a/readme.txt b/readme.txt
index 490651eee..8f977d245 100644
--- a/readme.txt
+++ b/readme.txt
@@ -77,6 +77,8 @@
 - HAL: Introduced preliminary support for STM32F7xx devices.
 - HAL: Introduced preliminary support for STM32L4xx devices.
 - HAL: Introduced preliminary support for STM32L0xx devices.
+- HAL: Enhanced Serial-USB driver using the new buffers queues object.
+- HAL: Simplified USB driver, queued API has been removed.
 - HAL: Enhanced the CAN driver with I-class functions. Now it is possible
        to exchange frames from ISRs.
 - HAL: Added watchdog driver model (WDG) and STM32 implementation on IWDG.