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pagetitle: Release Notes for STM32 sequencer
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# <small>Release Notes for</small> STM32 sequencer
Copyright &copy; 2019 STMicroelectronics\
    
[![ST logo](_htmresc/st_logo.png)](https://www.st.com){.logo}
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# License

This software component is licensed by ST under BSD 3-Clause license, the "License";
You may not use this file except in compliance with the License. You may obtain a copy of the License at:
 
 [https://opensource.org/licenses/BSD-3-Clause]

# Purpose

The source code delivered is an utility to help the task scheduling inside a system without OS.

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# Update History

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<label for="collapse-section3" aria-hidden="true">V1.2.0 / 24-June-2019</label>
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## Main Changes

### release V1.2.0

## Contents

  Headline
  --------
  Fixed to avoid infinite loop when a task is waiting for an event.

  : Fixed bugs list
\

## known limitations

## Development Toolchains and Compilers

- IAR Embedded Workbench for ARM (EWARM) toolchain V8.20.2
- RealView Microcontroller Development Kit (MDK-ARM) toolchain V5.25
- System Workbench STM32 (SW4STM32) toolchain V2.7.2

## Supported Devices and boards

## backward compatibility

## Dependencies

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<label for="collapse-section2" aria-hidden="true">V1.1.0 / 06-June-2019</label>
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## Main Changes

### release V1.1.0

## Contents

  Headline
  --------
  License correction.
  change __weak symbol by __WEAK to be compliant with AC6.

  : Fixed bugs list
\

## known limitations

## Development Toolchains and Compilers

- IAR Embedded Workbench for ARM (EWARM) toolchain V8.20.2
- RealView Microcontroller Development Kit (MDK-ARM) toolchain V5.25
- System Workbench STM32 (SW4STM32) toolchain V2.7.2

## Supported Devices and boards

## backward compatibility

## Dependencies

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<label for="collapse-section1" aria-hidden="true">V1.0.0 / 15-May-2019</label>
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## Main Changes

### first release

## Contents

  Headline
  --------
  first version. 

  : Fixed bugs list
\

## known limitations

## Development Toolchains and Compilers

- IAR Embedded Workbench for ARM (EWARM) toolchain V8.20.2
- RealView Microcontroller Development Kit (MDK-ARM) toolchain V5.25
- System Workbench STM32 (SW4STM32) toolchain V2.7.2

## Supported Devices and boards

## backward compatibility

## Dependencies


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<footer class="sticky">
For complete documentation on STM32,visit: [[www.st.com/stm32](http://www.st.com)]

This release note uses up to date web standards and, for this reason, should not be opened with Internet Explorer
but preferably with popular browsers such as Google Chrome, Mozilla Firefox, Opera or Microsoft Edge.
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