wolfMQTT v1.1 (06/21/18)

• Fixed case when use_tls was requested but TLS feature not compiled in. (PR #57)
• Fixed non-blocking issue that caused out of buffer error if not all of packet were received. (PR #65)
• Fixed non-blocking mode issue that was sending multiple connect requests for examples. (PR #65)
• Fixed non-blocking issue with ping keep alive in examples. (PR #68)
• Fixed the Arduino example with ENABLE_MQTT_TLS defined (PR #78)
• Added support for FreeRTOS TCP in wolfMQTT. (PR #58)
• Added README.md section for building wolfMQTT. (PR #63)
• Added new option to enable verbose logging ./configure --enable-debug=verbose. (PR #65)
• Added support for disconnect callback using WOLFMQTT_DISCONNECT_CB or ./configure --enable-discb. (PR #69)
• Added WOLFMQTT_LOCAL to internal API's for hidden visibility. (PR #73)
• Added include for wolfmqtt/options.h. (PR #79)
• Added IBM Watson IoT example (see ./examples/wiot/wiot). (PR #80)
• Updated the autoconf M4 files and added generation of ./configure options to wolfmqtt/options.h. (PR #71)
• Improved the message callback to support a custom context per message. (PR #62)
• Improved the non-blocking unsubscribe handling in mqttclient example for timeout. (PR #65)

wolfMQTT v1.0 (04/03/18)

• Fixed MqttClient_WaitMessage to use provided timeout_ms arg. With TLS enabled it was using the MqttClient_Init cmd_timeout_ms arg. Thanks PeterL for that report.
• Fixed cast warnings when building with Visual Studio.
• Cleanup socket code to use existing SOCK_CLOSE for NetDisconnect.
• Cleanup to move the sockRc into the MqttTls struct, since it only applies when TLS is enabled.
• Added configure option to disable error strings for reduced code size (./configure disable-errorstrings or #define WOLFMQTT_NO_ERROR_STRINGS).
• Added support for ChibiOS.

wolfMQTT v0.14 (11/22/17)

• Fixed non-blocking connect to check for EINPROGRESS for all platforms (not just Harmony).
• Fixed buffer overflow position check on read/write.
• Fixed typo on internal packet function MqttDecode_ConnectAck.
• Fixed the socket close for Harmony to use closesocket.
• Fixed non-blocking connect where WOLFMQTT_NO_STDIO is defined.
• Fixed GCC 7's new fall-through check.
• Added check for EAGAIN in non-blocking mode (was only EWOULDBLOCK).
• Added non-blocking support for write operations when WOLFMQTT_NONBLOCK is defined.
• Added support for DH and setting the default minimum key bits.
• Added support for keep-alive ping when using non-blocking mode.
• Improvements to example TLS callback handling of return code failures.
• Improvements and fixes to Visual Studio projects.
• Enhancement to adjust wolfSSL options.h include based on WOLFSSL_USER_SETTINGS.

wolfMQTT v0.13 (05/10/17)

• Fixed issue with msg->stat in non-blocking.
• Fixed Arduino library build.
• Fixed examples with non-blocking (--enable-nonblock).
• Enhancement to pass network callback return codes through context when using TLS.
• Added option to disable the blocking timeouts for select() using --disable-timeout (or WOLFMQTT_NO_TIMEOUT).
• Added option to disable STDIN/fgets capture for examples using --disable-stdincap (or WOLFMQTT_NO_STDIN_CAP)
• Refactor to use new MQTT_CODE_STDIN_WAKE return code for examples using STDIN to send publish messages (normal blocking mode only).

wolfMQTT v0.12 (12/20/16)

• Fixes issue with read timeout in non-blocking mode with TLS enabled being teated as socket error.
• Fixed issue with “msg->stat” not getting reset on failure or timeout.
• Fix to not link libwolfssl with ./configure --disable-tls.
• Added AWS IoT Example and test script.

wolfMQTT v0.11

• Fix for building MQTT client example without the wolfSSL headers present.
• Fix for Microchip Harmony IP check so it works with non 192 subnets.

wolfMQTT v0.10 (09/26/16)

• Enabled big endian support.
• Fixes for building with Visual Studio.

wolfMQTT v0.9 (08/22/16)

• Added Microchip Harmony support (see new readme in IDE/Microchip-Harmony/README.md).
• Added non-blocking mode --enable-nonblock or WOLFMQTT_NONBLOCK, which uses new MQTT_CODE_CONTINUE response code.
• Added scripts/azureiothub.test.
• Added ./commit-tests.sh for testing all configurations.
• Added git pre-commit hook to run commit-tests.sh.
• Combined duplicate code in the examples into examples/mqttexample.c.
• Examples now use MQTTCtx structure as argument for tracking info/state.

wolfMQTT v0.8 (06/13/16)

• Fixed stdin capture bug and improved signal (ctrl+c) handling.
• Added Azure IoT hub MQTT client example.
• Added support for MQX / RTCS.
• Added "--disable-tls" and "--disable-examples" configure options.
• Added comment about max packet size.
• Added example for how to load a client certificate to mqttclient example.
• Moved the support for custom printf/line endings into the mqtt_types.h for use throughout the project.
• Updated README.md with information about the examples.

wolfMQTT v0.6 (03/18/2016)

• Fixes to support MinGW compiler.
• Fixed bug with include of the wolfSSL include of options.h.
• Fix to properly handle negative return code from wc_SignatureGetSize.
• Added Arduino IDE example in IDE/ARDUINO. See IDE/ARDUINOREADME.md for details.
• Added example UART interface for wolfMQTT. See examples/mqttuart.c.
• Added the ability to pass additional arguments to the scripts. Example: ./scripts/client.test "-h localhost"