C Device SDK

• Changed iothubtransport_amqp_messenger to not bubble up on_event_send_complete if message_sender is faulty (give chance to retry)
• Added Serializer DeviceMethod simple sample
• Updated build script to work with Visual Studio 2017

C Service SDK

Documentation

• Fixed broken link for devbox-setup
• Updated contribution guide
• Removed old reference in contribution doc to the macro tool for generating req ids

Bug Fixes

C Shared Utility

• Enabled use of system default for keep-alive and replaced erroneous C++ references with C pointer types
• Upgraded to ESP8266 RTOS SDK 1.5, bug fix for ssl connection issue
• Fixed to be able to compile production code with /TP

C Device SDK

• Update authentication implementation for MQTT
• Implement SetRetryPolicy in AMQP transport
• Network removal e2e tests
• Update devbox_setup.md
• Removed redundant IgnoreArgument
• Update x509 certificate code to handle ecc certs
• Adding a DEFINE_LOCAL_ENUM macro for defining internal enums
• AMQP transport Intel Edison build for Jenkins
• AMQP transport enabled E2E tests for Windows
• AMQP transport has OSx build and run E2E test
• AMQP transport gcc 4.4 build run directly cmake
• AMQP transport updated Ubuntu build script to run E2E tests
• AMQP transport enabled E2E tests for clang
• AMQP transport add Raspberry Pi build script for Jenkins
• AMQP transport add client/server local TCP E2E test
• AMQP transport enabled memory trace by using gballoc
• AMQP transport add LogError for frame_codec

C Service SDK

Documentation

• Add tlsio_openssl_compact_requirements.md

Bug Fixes

• Fixed a memory leak in test
• Fixed Wifi init loop
• Fix version tag format strings in devbox_setup.md

C Device SDK

• WebSocket support for AMQP and MQTT (nuget)
• AMQP transport to report IoTHubClient_LL_ConnectionStatusCallBack
• AMQP transport reconnects faster
• Add CONNECTION_STATE_DISCARDING handling to uamqp
• Update CBS code to use the new CBS APIs
• New uAMQP with lower traffic usage
• Add an authorization module to encapsulate sas token
• Update api to remove device_key as manditory
• Build enabled with TI
• Add an authorization module to encapsulate sas token
• Add proxy_data option to MQTT transport common module
• Improved MQTT error reporting.
• Add trusted certificates in the upload to blob sample
• Add header and specs for iothub auth client
• Method Callback does not lock
• Update transports to use the new WSIO_CONFIG and to stub support the HTTP proxy config
• AMQP transport to auto re-subscribe for methods if DETACH received from service

C Service SDK

Documentation

Bug Fixes

• Fix typo on upload to blob
• Fix for MQTT transport to detect asynchronous connection result

C Device SDK

• we are prepared for Visual Studio 2017
• AMQP has requirements for idle connection
• AMQP transport has a new design
• certificates now export all the root CAs
• latest parson is used
• retry control is a separate module
• preparation for web sockets own implementation
• FreeRTOS has a threadapi implementation
• FreeRTOS has a tickcounter adapter and unittests
• HTTP proxy io
• WolfSSL is now using TLS1.2
• various improvements in uamqp related to unittests

C Service SDK

Documentation

Bug Fixes

• various memory leaks
• AMQP transport no longer crashes under certain circumstances
• C2D message callback no longer holds a lock
• locking is now non-recursive on windows
• CA certificate was not freed
• tlsio_openssl no longer leaks when connection is broken
• WS context is no longer destroyed in a callback which caused undefined behavior
• _SetOption no longer returns blindly "OK" in httpapi_curl

This release has been crafted from SHA 577bb8c4fa93180abc8f4f9ae0abf97f66768105

C Device SDK

• Mac now uses @rpath
• MQTT now has message id and correlation id
• All samples now print message-id and correlation id
• FAILURE has replaced LINE
• AMQP method links are now recreated
• schemalib's tests have been migrated to umock_c

C Service SDK

Documentation

Bug Fixes

• MQTT tests
• WSIO now listens to CLOSED event
• macOS build does not fail anymore and can handle SAL annotations
• message_destroy is no longer called twice in certain cases
• uws_client includes <limits.h>

GitHub issues:

This release has been crafted from SHA b71fb3651d7660551a2079b8c8a75b9803e2d7aa

C Device SDK

• partial AMQP transport redesign
• valgrind with clang will ignore the console printfs/puts as race conditions
• linux packages now reference azure-iot-sdk-c (instead of azure-iot-sdks)
• better curl package management
• cmake is now @rpath aware on Mac
• uws under development

C Service SDK

• message properties for C service client

Documentation

• develop branch has lost its previous priviledges. Its existance has been discontinued.
• devbox_setup,md contains macOS instructions

Bug Fixes

• BECAUSE_DESTROY is called again
• memory leaks when device received more than 1 message
• uws_client includes <limits.h>
• c shared utility has been fully namespaced
• all samples are now calling platform_init/deinit
• lws context is now lazily destroyed
• wsio is now more used
• fixed issues in XCode build
• lock.c is no longer a dependecy in c shared utility tests
• windows ARM build now links with advapi.lib
• tlsio_openssl now properly destroys underlying io
• message_sender now calls on_message_send_complete just once

GitHub issues:

• https://github.com/Azure/azure-c-shared-utility/issues/49
• https://github.com/Azure/azure-iot-sdk-c/issues/34
• https://github.com/Azure/azure-iot-sdk-c/issues/45
• https://github.com/Azure/azure-iot-sdk-c/issues/53
• https://github.com/Azure/azure-iot-sdk-c/issues/54

This release has been crafted from SHA 297dd732588210f2792ccf92c9d92a2ff4235096

C Device SDK

• Testing: x509 authenticated devices
• #include "vector.h" is now properly namspaced
• can build on OSX
• can build on clang
• vector now can be detached by "move" API
• removed expired certs from certs.c
• uws is getting development traction. (websockets client)
• options can now be cloned as a HANDLE in bulk.
• no longer using crtdbg.h header on WIndows - deprecated in favor of Valgrind or VLD

C Service SDK

Documentation

• Doxyfile has found it way back into the repo

Bug Fixes

• leaks under specific hostile conditions (tlsio_wolfssl, tlio_openssl, mqtt_client )
• setting the sytem time back one day and setting it back will have the SDK reconnect properly
• linux samples were missing "m" for linker
• linux sample were missing "azureiot/inc" for include paths
• vector can be used from C++ namespaces on clang

This release has been crafted from SHA f348ba07a30ddf0a66620c4fb76c27d56d4933c2

C Device SDK

Removes usage of crtdbg in favor of anyhow using VLD
Converts interator in iothub_client_sample_mqtt_esp8266.c from size_t to int.
Adds mqtt sample specifically for smaller devices like esp8266

Bug Fixes

Fix for setting the clock back 1 day and back to current time
Fixes sprintf_s for interator in iothub_client_sample_mqtt_esp8266.c
Updates mqtt files for none C99 mode

C Device SDK

• use newer parson that has UTF-8 BOM bug fix
• Samsung Tizen is supported
• C AMQP Transport CBS Authentication module (round 1)
• Add MQTT_WS and AMQP_WS E2E tests to build
• update libwebsockets to a newer version
• Update Arduino library version

C Service SDK

• Add x509 Thumbprint to service registry api

Documentation

• fixed some typos

Bug Fixes

• E2E tests: Don't destroy data until client referencing is destroyed
• fix for https://github.com/Azure/azure-c-shared-utility/issues/41
• fix incorrect function pointer predicate in'case CALLBACK_TYPE_DEVICE_METHOD'

Improvements:

• improvements for small platforms

This release has been crafted from SHA 4ea5457a2f683c756d572d91bb31a17bdb35cbc7

C Device SDK

• C SDK AMQP Transport Messenger Module: code and unit tests
• Enabling device method to be call async
• User can build the IoT SDK libraries as a DLL.
• Add build and release files
• Samples have as default MQTT
• Do not hold a lock when calling a callback.
• Added E2E tests for devicetwin_serializer

C Service SDK

• Add SDK version API to Service Client

Documentation

• Add ArduinoIoTUtility and AzureIoTProtocol_MQTT to the readme
• Updated readmes for service client and serializer
• Updated device SDK instructions
• Updated readmes and other instructions
• Changed link to specific C on Linux sample instructions

Bug Fixes

• Convert request_id from uint16_t to a string
• Replace chars so users can compile with non-ASCII code page
• Various fixes for links, readmes, typos, dead links

Improvements:

• Add Python service client folder to Python build
• Change cmake option from "build_as_shared" to "build_as_dynamic"
• Remove redefinitions of common structures and declare them in common header
• Do not load serializer tests if run_unittests=OFF.
• Replace toupper and isdigit from the ctype to a local version

Merged pull requests :

• Support Tizen RT (https://github.com/Azure/azure-iot-sdk-c/pull/9)
• Scripts to add environment variables (https://github.com/Azure/azure-iot-sdk-c/pull/10)

Closed pull requests :

• Updated C samples to use MQTT by default ()

C Device SDK

• Added IoTHubDeviceTwin_SendReportedState to C SDK
• Created a WIP cmake option for the C2D AMQP methods
• Update callback to allow users calls to be done outside of the locks
• Enabled MQTT transport for Arduino
• Added sample for AMQP over WS with C2D methods multiplexed
• Added enhanced retry logic to MQTT transport
• Changed default behavior of CMAKE scripts to not build/run unit tests (enabled by scripts now)
• Pull request #928

C Service SDK

• Changed default behavior of CMAKE scripts to not build/run unit tests (enabled by scripts now)

Documentation

• Updated documentation due to moving Azure IoT C SDK into a separate git repository
• General fixes and updates on readmes and guides

Bug Fixes

• Memory leaks in E2E tests