Update README with Notice about new branching strategy. Create release branch
+## ***** NOTICE *****
+This repository is moving to a new branching system. The master branch will now contain bug fixes/features that have been minimally tested to ensure nothing major is broken. The release branch will contain new releases for the SDK that have been tested thoroughly on all supported platforms. Please ensure that you are tracking the release branch for all production work.
+
+This change will allow us to push out bug fixes quickly and avoid having situations where issues stay open for a very long time.
+
## Overview
The AWS IoT device SDK for embedded C is a collection of C source files which can be used in embedded applications to securely connect to the [AWS IoT platform](http://docs.aws.amazon.com/iot/latest/developerguide/what-is-aws-iot.html). It includes transport clients **MQTT**, **TLS** implementations and examples for their use. It also supports AWS IoT specific features such as **Thing Shadow**. It is distributed in source form and intended to be built into customer firmware along with application code, other libraries and RTOS. For additional information about porting the Device SDK for embedded C onto additional platforms please refer to the [PortingGuide](https://github.com/aws/aws-iot-device-sdk-embedded-c/blob/master/PortingGuide.md/).
@@ -25,9 +30,7 @@ For more information on the Architecture of the SDK refer [here](http://aws-iot-
## How to get started ?
Ensure you understand the AWS IoT platform and create the necessary certificates and policies. For more information on the AWS IoT platform please visit the [AWS IoT developer guide](http://docs.aws.amazon.com/iot/latest/developerguide/iot-security-identity.html).
-In order to quickly get started with the AWS IoT platform, we have ported the SDK for POSIX type Operating Systems like Ubuntu, OS X and RHEL. The SDK is configured for the mbedTLS library and can be built out of the box with *GCC* using *make utility*. The tarball can be downloaded from the below link:
-
-* [mbedTLS from ARM](https://s3.amazonaws.com/aws-iot-device-sdk-embedded-c/linux_mqtt_mbedtls-2.1.1.tar)
+In order to quickly get started with the AWS IoT platform, we have ported the SDK for POSIX type Operating Systems like Ubuntu, OS X and RHEL. The SDK is configured for the mbedTLS library and can be built out of the box with *GCC* using *make utility*. You'll need to download mbedTLS from the official ARMmbed repository. We recommend that you pick the latest version in order to have up-to-date security fixes.
## Installation
This section explains the individual steps to retrieve the necessary files and be able to build your first application using the AWS IoT device SDK for embedded C.
