.. _changelog_ide_v4_1_6:

v4.1.6
======

v4.1.6 is a maintenance and examples release that refreshes all bundled board
firmware to OpenMV firmware 4.5.3, reorganizes the OpenMV Boards examples by
board family, and adds new autofocus, color-correction, Pure Thermal, and
OpenMV RT1060 example sets. The release remains based on Qt Creator 10.0.1
(no rebase) and contains no breaking changes for user projects.

.. contents:: On this page
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Highlights
----------

- **OpenMV firmware 4.5.3** is now bundled, with board firmware (and, for the
  STM32 OpenMV cameras, bootloader/uvc) images rebuilt for the OpenMV and
  Arduino boards.
- **Reorganized OpenMV Boards examples** into ``50-STM32-Boards``,
  ``50-IMXRT-Boards``, ``51-Pure-Thermal``, and ``60-Shields`` subfolders with
  per-board filtering so each board only sees relevant examples.
- **Pure Thermal examples** added, including a thermal-over-color overlay demo
  driving the LCD and HDMI output.
- **OpenMV RT1060 board-control examples** added under a new
  ``50-IMXRT-Boards`` set.
- **Sensor autofocus** and **color-correction** examples added,
  demonstrating ``sensor.ioctl(sensor.IOCTL_TRIGGER_AUTO_FOCUS)`` and the
  image ``ccm()`` color correction matrix method.

New features
------------

- Added a **sensor autofocus** example demonstrating
  ``sensor.ioctl(sensor.IOCTL_TRIGGER_AUTO_FOCUS)`` for cameras that support
  autofocus
  (`780748d66 <https://github.com/openmv/qt-creator/commit/780748d66>`__).
- Added a **color-correction** example showing the new image ``ccm()`` color
  correction matrix method for hue/saturation shifts via YUV matrix math,
  using ``ulab`` numpy
  (`780748d66 <https://github.com/openmv/qt-creator/commit/780748d66>`__).
- Added a full set of **Pure Thermal** board examples, including a
  thermal-over-color overlay demo driving the LCD and HDMI output via
  ``fir.FIR_LEPTON``, ``display.RGBDisplay``, and ``tfp410.TFP410``, plus
  blinky and helloworld
  (`780748d66 <https://github.com/openmv/qt-creator/commit/780748d66>`__).
- Added a dedicated **50-IMXRT-Boards** example set for the OpenMV RT1060
  with ADC, CAN, I2C, LED/PWM, motor control, pin, PWM, RTC, servo, SPI,
  switch, timer, UART, and watchdog board-control scripts
  (`780748d66 <https://github.com/openmv/qt-creator/commit/780748d66>`__).

Other changes and improvements
------------------------------

- Updated all bundled board firmware to **OpenMV firmware 4.5.3**, rebuilding
  the firmware images for the OpenMV and Arduino boards (with bootloader and
  uvc images rebuilt only for the STM32 OpenMV cameras)
  (`780748d66 <https://github.com/openmv/qt-creator/commit/780748d66>`__).
- Reorganized the OpenMV Boards examples into ``50-STM32-Boards``,
  ``50-IMXRT-Boards``, ``51-Pure-Thermal``, and ``60-Shields`` subfolders with
  per-board filtering, moving many board-control and shield scripts into the
  appropriate family
  (`780748d66 <https://github.com/openmv/qt-creator/commit/780748d66>`__).
- Hid the HelloWorld blinky/helloworld examples on the Pure Thermal board and
  added STM32 low-power examples (``deep_sleep``, ``sensor_sleep``,
  ``stop_mode``)
  (`780748d66 <https://github.com/openmv/qt-creator/commit/780748d66>`__).
- Removed the ``cartoon_filter`` example and dropped the
  ``person_detection`` built-in-model callback from the RPC Remote-Control
  popular-features examples (``08-RPC-Library/34-Remote-Control``), following
  removal of the bundled ``person_detection`` model in firmware 4.5.3, and
  updated several recording, drawing, WiFi, and MQTT examples
  (`780748d66 <https://github.com/openmv/qt-creator/commit/780748d66>`__).

Bug fixes
---------

- Fixed the Chinese (``zh_CN`` and ``zh_TW``) "All Files" file-dialog filter
  translation that used fullwidth characters, restoring the working ASCII
  ``(*.*)`` pattern in Open/Save dialogs
  (`cecfda3b7 <https://github.com/openmv/qt-creator/commit/cecfda3b7>`__).

Platform and tool support
-------------------------

- **Qt Creator base:** 10.0.1.
- **OpenMV firmware:** updated from 4.5.2 to 4.5.3. ``OPENMV2/3/4/4P/PT``
  received full firmware + bootloader + uvc rebuilds;
  ``ARDUINO_GIGA``/``PORTENTA_H7``/``NICLA_VISION`` received firmware + uvc;
  ``ARDUINO_NANO_RP2040_CONNECT`` and the Nano 33 BLE Sense received firmware
  only; ``OPENMV_RT1060`` received ``firmware.bin`` only. The Nano 33 BLE
  Sense ``boards.txt`` identifier was normalized to
  ``ARDUINO_NANO_33_BLE_SENSE``.
- **CYW4343 WiFi firmware:** metadata added for CYW43 WiFi FW 7.45.98.50
  (``CYW43_WIFI_FW_LEN`` 383110, ``CYW43_CLM_LEN`` 7222).

Breaking changes
----------------

None. This release is fully compatible with existing projects; the Qt Creator
base is unchanged.