Long-term support (LTS) release for Azure IoT C SDK, published on 2024-03-04. For details about LTS branches, please see our documentation.

vcpkg:

• Port: azure-iot-sdk-c
• Version: 2024-03-04 (pending)

C Device SDK:

• Code version: 1.12.0
• Added memory checks for C SDK (#2583)
• Update DPS API version to 2021-06-01 (#2584)
• Update malloc checks on submodules (#2573)
• Add malloc size checks (#2568)
• Fix potential size_t overflow in twin serializer (#2567)
• Fix potential Int wraparound in CopyPayloadToString (#2565)
• Update uamqp (get double-free fixes) (#2563)
• Fix IoTHubClient_LL_UploadToBlob_NotifyCompletion to use empty string when responseMessage is NULL (gh2554) (#2555)
• Add extern "C" to iothub_client_properties.h (#2548)
• Document that azure-iot-sdk-c does not currently support HTTPS proxy, only HTTP (#2546)
• Updated doxygen for Retry Policy (#2542)
• xcode fix prototype warnings (#2527)
• Fix DUP flag in re-sent telemetry over MQTT protocol (#2519)

uAMQP:

• Fix potential null pointer dereference (#455)
• Fix potential double free in link.c (#456)
• Added AMQP malloc checks (#453)
• Use safe math in message.c (#452)
• Check for minimum size of amqpvalue_get_encoded_size in sasl_frame_codec_encode_frame (#450)
• Fix double-free throughout amqp_definitions (#447)
• Added int overflow checks for amqp value (#446)

uMQTT:

• Added missing malloc checks (#164)

uHTTP:

• Added missing malloc checks (#132)

uTPM:

• Added missing malloc checks (#129)

Long-term support (LTS) release for Azure IoT C SDK, published on 2023-08-07.
For details about LTS branches, please see our documentation.

vcpkg

• Port: azure-iot-sdk-c
• Version: 2023-08-07

C Device SDK

• Code version: 1.11.0
• Remove support for TizenRT board #2431
• Fix propagation of file upload timeout to multi blocks upload #2439
• Fix duplicate include guard in AMQP common files #2467
• Fix AMQP transport to break infinite loop of link re-attachments #2472
• Update upload to blob sample to use MQTT #2482
• DPS-TPM deprecation #2484
• Remove curl dependency from iot_hub_client_sample_mqtt_dm sample #2485
• Fix data type of error code for upload to blob error responses #2490
• Change message_queue indexing from pointer to uint32_t to fix memory corruption #2497
• New API: Add more granular upload-to-blob functions, refactor u2b code #2498

C Shared Utility

• Remove files and support related to MBED OS #609
• Adding IPv6 Dual Stack support for Linux #623
• Remove check for return value of strcpy #625
• Fix UUIT_T overflow #626
• Allow openssl engine support to be optional #628
• Library fix when http is OFF #629
• Local socket bug fix post IPv6 addition on Linux #630)

uMQTT Library

• Remove files and support related to MBED OS #145

uAMQP Library

• Remove files and support related to MBED OS #428

uTPM Library

• DPS-TPM deprecation announcement #117

vcpkg: Port: azure-iot-sdk-c Status: Pending

Long-term support (LTS) for Azure IoT C SDK, published on 2023-04-20. For details about LTS branches, please see our documentation.

C Device SDK

• Code version: 1.10.1
• Fix for infinite re-ATTACH bug (#1f4fd95b2fabee500244d51d7b99663ac6e36a20)

vcpkg: Port: azure-iot-sdk-c Version: 2023-01-18

Long-term support (LTS) for Azure IoT C SDK, published on 2023-01-19. For details about LTS branches, please see our documentation.

C Device SDK

• Code version: 1.10.0
• Add deprecation warning to cocoapods (#2409)
• Support openssl engine when using curl library (#2400)
• Allow empty file blob uploads (#2393)
• Added docker sample for ARM cross compile and latest MIPS32 toolchain (#2366)
• Use tick counter and not clock for connection retry (#2384)

C Shared Utility

• Adding support for OpenSSL engines when using curl (#602)
• Add HTTP transport (cURL) support for OpenSSL Engines (#2372)

vcpkg: Port: azure-iot-sdk-c Version: 2022-09-15

Long-term support (LTS) release for Azure IoT C SDK, published on 2022-09-22. For details about LTS branches, please see our documentation.

C Device SDK

• Code version: 1.9.1
• Added gate check on Ubuntu 22.04 to be able to test OpenSSL 3 (#2346)

C Shared Utility

• Added OpenSSL 3 and Ubuntu 22.04 compatibility (#604)

Long-term support (LTS) release 07_2022 for Azure IoT C SDK, published on 2022-08-09. For details about LTS branches, please see our documentation.

Version updates:

• Parson to v1.3.1
• RIoT:
  • Update bouncycastle dependency (#2202 and #2197)

C Device SDK

• Code version: 1.9.0
• Update CMake Linux samples to remove warnings (#2212)
• Add macros includes to the build include directories (#2218)
• Added documentation on device application CMAKE (#2224)
• Adding X509 PEM support for Provisioning Client (#2229)
• Remove SAS token validation in the SDK (#2256)
• Added subscription_error_count reset / AMQP IOTHUB_CLIENT_CONNECTION (#2267)
• MQTT reconnect order fix (#2289)
• MQTT double free (#2311)
• The get twin callback is now called on a get twin operation if the client handle destroy is called before the get twin operation is completed. (#2321)
• Change tickcounter cast to portable type (#2327)
• Add MQTT reconnect timeout (#2319)
• Merge PnP feature into main (#2334)

C Shared Utility

• Remove failure on wrong TLS match with cURL (#597)
• Check cURL TLS platform is valid and matches CSDK TLS platform (validates that cURL is using a valid TLS platform that the CSDK supports(wolfSSL, OpenSSL, or mbedTLS) to prevent potential memory leaks) (#595)
• Fix for memory leak in http-proxy-io (#592)
• Handle ENOBUFS correctly in socketio_berkeley (#590)
• Adapters: fix build with libressl >= 2.8.0 (#589)
• Update console logger (#587)
• Fixing functions for strict-prototypes. (#586)
• Update Node version on gate from 6=>16 (#579)

uTPM Library

• Fixing functions for strict-prototypes (#100)

uMQTT Library

• Reset time on ping since reconnection (#139)

vcpkg: Port: azure-iot-sdk-c Version: 2022-01-21

Long-term support (LTS) release for Azure IoT C SDK, published on 2022-01-21. For details about LTS branches, please see our documentation.

C Device SDK

• Code version: 1.8.0
• Rename master branch to main (#2165)
• Fix send_error_count not being reset by amqp_messenger_stop (#2120)
• Fix upload to blob (#2112, #2057)
• Pass empty JSON in method callback when null payload received from service (#2097)
• Send COMMUNICATION_ERROR for failed PUBACK DC messages (#2078)
• Added additional SDL validation.

c-shared-utility

• Fix crash when proxy configuration is invalid (#567)

umqtt-c

• Fixes to chain of async_operation_cancel calls (#416)
• Fix sending MQTT PING requests (#129)

Package versions:

Apt/Debian: (No longer supported)

vcpkg: Port: azure-iot-sdk-c Version: 2021-09-09

Long-term support (LTS) release 07_2021 of Azure IoT C SDK, published on 08/11/2021. For details about LTS branches, please see our documentation.

C Device SDK

• Code version: 1.7.0
• Updated certificate support and information (#2025, #1979, #1971, #1856, #1832)
• Removed support for binary releases, including APT and NuGet (#1933)
• Added support to send async responses for C2D messages (#1994)
• Added support for file upload network interface (#1884)
• Added reconnect for AMQP when CONNECTION_STATE_CLOSE_RCVD (#1960)
• Updated Edge input message MQTT topic subscription from QoS 0 to 1. (#1876)
• Increased blob upload size (#2014)
• Fixed upload long Blob using mbed TLS + compact (#2004)
• Fixed proxy port for provisioning client with AMQP-WS (#2002)
• Fixed certGen.sh (#1864, #1862)
• Rewrote MQTT PUBLISH topic parser for C2D / IoT Edge parsing (#1756)
• Updated builds (#2015, #1948, #1846)
• Updated CMake to 3.17.5 (#1847, #1941)
• Updated Raspberry Pi requirements (#2013)
• Updated TLS requirements (#1926)

c-shared-utility

• Added support for OpenSSL IP Address SAN validation (#522)
• Added support of TLS renegotiation options (#521)
• Added support to compile uuid for Azure Sphere (#519)
• Added support for file upload network interface (#516)
• Fixed upload long Blob using mbed TLS + compact (#541)
• Fixed proxy with wolfSSL and MQTT/WS (#504)
• Fixed segfault when using wolfSSL and MQTT/WS (#496)
• Fixed build break for gcc11 (#552)

umqtt-c

• Added support for async PUBACK (#120)

uamqp-c

• Updated amqp_management and cbs to return async_operation_handles (#387)
• Fixed flow control to be based off message instead of transfer frame (#383)

Package versions:

Apt/Debian: azure-iot-sdk-c - 0.2.0.0-31xenial azure-iot-sdk-c - 0.2.0.0-24bionic

VcPkg: Port: azure-iot-sdk-c Version: unreleased

Long-term support (LTS) release of Azure IoT C SDK, published on 01/2021. For details about LTS branches, please see our documentation.

C Device SDK

• Code version: 1.6.0
• Updated string buffer size in unit test (PR #1825)
• Addressed Y2K38 issue for SAS tokens (PR #1807)
• Added OpenSSL engine support (PR #1798)
• Added fix for device multiplexing in AMQP transport (#1797)
• Added retry to device when SAS refreshes (#1794)
• Fixed Return value ignored: 'snprintf' (#1780)

C Shared Utility

• Fixed setDeviceId retry bug in wolfSSL (PR #500)
• Updated unused parameter (PR #481)
• Suppressed SIGPIPE error during debugging (PR #479)
• Addressed Y2K38 issue for SAS tokens (PR #494)
• Fixed errno.h inclusion (PR #485)
• Added OpenSSL engine support (PR #492)

Package versions: Apt/Debian: azure-iot-sdk-c - 0.2.0.0-29xenial azure-iot-sdk-c - 0.2.0.0-22bionic

This release contains a security fix affecting applications using c-utility in conjunction with OpenSSL or WolfSSL.

• TLS hostname validation fix for OpenSSL and WolfSSL. CVE-2020-17002

Additional fixes:

C Device SDK

• Code version: 1.4.1
• Fix for memory leak in _GetTwinAsync (gh issue #1478)
• Fix for memory leak if destroying device client right after sending Twin reported property update
• Fix sending get twin requests only after the response topic suback is received (#1585)
• Fix Heap Buffer Overflow when sending message with Property (#1618)
• Fix for lack of throttling on registration request of DPS client
• Fix mqtt disconnect bug (#1696)

C Shared Utility

• [mbedtls] Adding support to send larger payload (#421)
• [tlsio_mbedtls] Fix memory leak (#422, #475)
• Fixing socket state when DNS resolution failed. (#437)
• Fix potential buffer overflow in crypto library
• Fix retry bug in tlsio_wolfssl
• Add check for overflow for BUFFER_prepend (#467)
• Sdl bug fix (#465)
• Fix for using correct wolfssl api in httpapi (#471)
• Add ecc support in httpapi_compact
• Fix for #1624 iOS 14 send temeletry fix (#477)