diff --git a/README.md b/README.md
index 8ed2ff73cf..d20c29e372 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@ This repository is MCCI's version of [Arduino_Core_STM32](https://github.com/stm
 
 For general information, please check the stm32duino [README.md](https://github.com/stm32duino/Arduino_Core_STM32#arduino-core-support-for-stm32-based-boards), especially the [Getting Started](https://github.com/stm32duino/Arduino_Core_STM32#getting-started) section.
 
-[![GitHub release](https://img.shields.io/github/release/mcci-catena/Arduino_Core_STM32.svg)](https://github.com/mcci-catena/Arduino_Core_STM32/releases/latest) [![GitHub commits](https://img.shields.io/github/commits-since/mcci-catena/Arduino_Core_STM32/latest.svg)](https://github.com/mcci-catena/Arduino_Core_STM32/compare/v2.8.0...master)
+[![GitHub release](https://img.shields.io/github/release/mcci-catena/Arduino_Core_STM32.svg)](https://github.com/mcci-catena/Arduino_Core_STM32/releases/latest) [![GitHub commits](https://img.shields.io/github/commits-since/mcci-catena/Arduino_Core_STM32/latest.svg)](https://github.com/mcci-catena/Arduino_Core_STM32/compare/v3.0.0...master)
 
 **Contents:**
 <!-- markdownlint-disable MD033 -->
@@ -156,7 +156,7 @@ Remember to restart the IDE whenever you change `platform.txt`, `boards.txt` or
 
 ## Release History
 
-- HEAD: Switch to true semantic versioning [#150](https://github.com/mcci-catena/Arduino_Core_STM32/issues/150. add support for MCCI trusted bootloader. This will be V3.0 when released; version is (semantic) 3.0.0-1 (pre-release 1).
+- [v3.0.0](https://github.com/mcci-catena/Arduino_Core_STM32/releases/tag/v3.0.0) Switch to true semantic versioning [#150](https://github.com/mcci-catena/Arduino_Core_STM32/issues/150). Add support for MCCI trusted bootloader [#148](https://github.com/mcci-catena/Arduino_Core_STM32/issues/148), [#149](https://github.com/mcci-catena/Arduino_Core_STM32/issues/149), [#151](https://github.com/mcci-catena/Arduino_Core_STM32/issues/151), [#153](https://github.com/mcci-catena/Arduino_Core_STM32/issues/153). Enable interrupts on entry to reset vector for consistency with ST bootloader.
 
 - [v2.8.0](https://github.com/mcci-catena/Arduino_Core_STM32/releases/tag/v2.8.0) Added support for new board: 4802, [#143](https://github.com/mcci-catena/Arduino_Core_STM32/issues/143).
 
diff --git a/cores/arduino/Arduino.h b/cores/arduino/Arduino.h
index dc6e58ee8f..a0ebafb745 100644
--- a/cores/arduino/Arduino.h
+++ b/cores/arduino/Arduino.h
@@ -1,7 +1,7 @@
 /*
   Arduino.h - Main include file for the Arduino SDK
   Copyright (c) 2005-2013 Arduino Team.  All right reserved.
-  Copyright (c) 2019 MCCI Corporation. All rights reserved.
+  Copyright (c) 2019-2021 MCCI Corporation. All rights reserved.
 
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
@@ -52,7 +52,7 @@
 ///     \ref _mcci_arduino_version_calc() to compare relative versions.
 ///
 #define	_mcci_arduino_version	\
-  _mcci_arduino_version_calc(3, 0, 0, 3)	/* v3.0.0-3 */
+  _mcci_arduino_version_calc(3, 0, 0, 0)	/* v3.0.0 */
 
 ///
 /// \brief get major version code from semantic version value
diff --git a/platform.txt b/platform.txt
index f8fa697547..90aabaf108 100644
--- a/platform.txt
+++ b/platform.txt
@@ -5,7 +5,7 @@
 # https://github.com/arduino/Arduino/wiki/Arduino-IDE-1.5-3rd-party-Hardware-specification
 
 name=MCCI Catena STM32 Boards
-version=2.8.0
+version=3.0.0
 
 # STM compile variables
 # ----------------------