.. _changelog_ide_v2_5_0:

v2.5.0
======

v2.5.0 reworks the Model Editor into a full machine-learning **Dataset
Editor**, switches firmware flashing to the cross-platform ``dfu-util`` tool,
and adds support for Arduino-branded OpenMV cameras. This release stays on the
Qt Creator 4.0.2 base and contains no breaking changes for existing projects.

.. contents:: On this page
   :backlinks: none
   :local:
   :depth: 1

Highlights
----------

- **Dataset Editor** replaces the old Model Editor, letting you build
  machine-learning image datasets directly from the camera with named class
  folders and a live preview pane.
- **Export Dataset** writes a dataset out as an Edge Impulse-compatible
  ``.zip``.
- **dfu-util firmware flashing** replaces the Windows-only ``DfuSeCommand.exe``
  / ``pydfu.py`` path, removing the need to manually install libusb/pyusb on
  macOS and Linux.
- **Arduino Portenta H7 support** recognizes Arduino-branded OpenMV cameras for
  serial detection, bootloader connection, and DFU firmware download.
- **Download progress** for firmware/package updates is now real and
  cancelable, with separate Downloading and Installing phases.

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

- **Dataset Editor.** The Model Editor was reworked into a full Dataset Editor
  for building machine-learning image datasets. The ``Dataset Editor`` menu
  adds **New Dataset**, **Open Dataset**, and **Close Dataset** actions; a new
  dataset is pre-seeded with a ``dataset_capture_script.py`` template, and a
  ``labels.txt`` is generated and kept in sync as class folders are added.
  Images are captured on-camera into named class folders, shown in a
  ``QFileSystemModel``-backed tree with double-click-to-open and a context-menu
  Delete/Rename, alongside a live image preview pane
  (`aa0101189 <https://github.com/openmv/qt-creator/commit/aa0101189>`__,
  `96cbcd97a <https://github.com/openmv/qt-creator/commit/96cbcd97a>`__,
  `f1a39272b <https://github.com/openmv/qt-creator/commit/f1a39272b>`__,
  `28cc1bfbd <https://github.com/openmv/qt-creator/commit/28cc1bfbd>`__).
- **Export Dataset.** A new action writes the dataset out as a ``.zip``,
  flattening images into ``<class>.<snapshot>`` class-named files compatible
  with Edge Impulse, shown with a cancelable progress dialog. Class folders
  changed from numbered (``NNNNN.name.class``) to plain ``name.class``
  (`f1e6b6a0d <https://github.com/openmv/qt-creator/commit/f1e6b6a0d>`__,
  `0297d4b9e <https://github.com/openmv/qt-creator/commit/0297d4b9e>`__,
  `aa69ab62c <https://github.com/openmv/qt-creator/commit/aa69ab62c>`__).
- **dfu-util firmware flashing.** Firmware flashing was rewritten to use the
  cross-platform ``dfu-util`` tool instead of the old Windows
  ``DfuSeCommand.exe`` / ``pydfu.py`` path. ``connectClicked()`` now calls
  ``downloadFirmware()`` and the old "PyDFU requires libusb" instruction
  dialogs are gone, removing the requirement to manually install libusb/pyusb
  on macOS and Linux
  (`2bf0b71c7 <https://github.com/openmv/qt-creator/commit/2bf0b71c7>`__,
  `5396b7072 <https://github.com/openmv/qt-creator/commit/5396b7072>`__,
  `d64cb05b1 <https://github.com/openmv/qt-creator/commit/d64cb05b1>`__).
- **Desktop and Linux launcher icons.** On Windows the installer now creates a
  Desktop shortcut in addition to the Start Menu entry, and the Linux build
  now installs an application icon (``openmv.png``) via ``bin.pro``. The
  ``.desktop`` ``Icon`` reference was added but later removed, so the Linux
  launcher ships without an ``Icon=`` entry
  (`327fc2f69 <https://github.com/openmv/qt-creator/commit/327fc2f69>`__,
  `ccca0859f <https://github.com/openmv/qt-creator/commit/ccca0859f>`__,
  `b1e2b0469 <https://github.com/openmv/qt-creator/commit/b1e2b0469>`__).
- **Single-pixel inspection.** The frame buffer viewer and serial terminal now
  show ``Point (x, y)`` in the resolution label and draw the selection band
  when you click a single point, instead of only reporting multi-pixel ROIs
  (`86839b4c0 <https://github.com/openmv/qt-creator/commit/86839b4c0>`__).
- **New example scripts.** Bundled a large batch of new examples including
  remote image transfer over UART/USB (raw and JPEG, controller and remote
  roles), "popular features" remote-control demos, 100 fps IR-LED readout
  tracking, an RTSP video server, advanced image drawing with custom palettes,
  ``ulab`` numpy-style math, and perspective/rotation correction
  (`c0a6ff6c8 <https://github.com/openmv/qt-creator/commit/c0a6ff6c8>`__,
  `0cc0a7761 <https://github.com/openmv/qt-creator/commit/0cc0a7761>`__,
  `d77667c20 <https://github.com/openmv/qt-creator/commit/d77667c20>`__).

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

- **Update download progress.** The firmware/package update download now shows
  real download progress and can be canceled, separating the Downloading and
  Installing phases instead of a single indeterminate Installing bar
  (`c36d151f3 <https://github.com/openmv/qt-creator/commit/c36d151f3>`__,
  `f1a39272b <https://github.com/openmv/qt-creator/commit/f1a39272b>`__).
- **Frame buffer re-centering.** The frame buffer viewer now re-centers the
  image within the view on updates and resizes
  (`327fc2f69 <https://github.com/openmv/qt-creator/commit/327fc2f69>`__).
- **HTTPS links.** External help and code-generator links and update-download
  URLs were switched from ``http`` to ``https`` (Google generators, OpenMV
  forums, ``openmv.io`` download, and the GPL license link)
  (`a0a104e63 <https://github.com/openmv/qt-creator/commit/a0a104e63>`__).
- **Bundled example updates.** The old CMSIS CNN example
  ``09-Feature-Detection/cnn.py`` was removed, the
  ``02-Board-Control/dac_control.py`` example was renamed to ``dac_write.py``,
  and a new ``02-Board-Control/dac_write_timed.py`` example was added; a
  bundled ``mobilenet_labels.txt`` label file was also added
  (`330548305 <https://github.com/openmv/qt-creator/commit/330548305>`__).
- **Updated bundled firmware.** Rebuilt and updated the bundled firmware images
  (openmv/uvc/bootloader) for OPENMV2, OPENMV3, OPENMV4, and OPENMV4P boards
  across several resource-update commits. The bundled firmware version
  (``firmware.txt``) progressed ``3.5.2`` -> ``3.6.1`` -> ``3.6.2`` ->
  ``3.6.4`` across these updates, shipping ``3.6.4``, and the ``HM01B0``
  (``0xB0``) sensor was added to the recognized sensor list (``sensors.txt``)
  (`0cc0a7761 <https://github.com/openmv/qt-creator/commit/0cc0a7761>`__,
  `c0a6ff6c8 <https://github.com/openmv/qt-creator/commit/c0a6ff6c8>`__,
  `a6df35010 <https://github.com/openmv/qt-creator/commit/a6df35010>`__,
  `330548305 <https://github.com/openmv/qt-creator/commit/330548305>`__).
- **Updated dfu-util binaries.** Updated the bundled ``dfu-util``
  prefix/suffix/util binaries for arm, linux32, linux64, osx, and windows
  (`dd8733632 <https://github.com/openmv/qt-creator/commit/dd8733632>`__).

Bug fixes
---------

- Fixed a transient command-prompt/console window flashing on screen during
  firmware DFU download and video tool (ffmpeg/ffplay) operations on Windows
  (`092fbad74 <https://github.com/openmv/qt-creator/commit/092fbad74>`__).
- Fixed the default editor font on ARM Linux hosts (e.g. Raspberry Pi) to use
  ``DejaVu Sans Mono`` instead of a missing/unsuitable ``Monospace`` family
  (`53a864787 <https://github.com/openmv/qt-creator/commit/53a864787>`__).

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

- **Qt Creator base:** 4.0.2.
- **Arduino Portenta H7 / Arduino-branded OpenMV cameras** are now supported:
  the Arduino USB VID ``0x2341`` (PID ``0x005B`` masked) is recognized for
  serial detection and bootloader connection across the serial port-scan
  locations
  (`7f3e2b389 <https://github.com/openmv/qt-creator/commit/7f3e2b389>`__,
  `3687643c6 <https://github.com/openmv/qt-creator/commit/3687643c6>`__).
- **DFU firmware download** now also targets the Arduino DFU device
  (``2341:035b``) in addition to the STM ``0483:df11`` bootloader, allowing
  Arduino board firmware to be flashed via ``dfu-util``
  (`2d47c6dac <https://github.com/openmv/qt-creator/commit/2d47c6dac>`__).
- **New sensor:** the ``HM01B0`` (``0xB0``) sensor was added to the recognized
  sensor list (``sensors.txt``)
  (`a6df35010 <https://github.com/openmv/qt-creator/commit/a6df35010>`__).
- **Bundled tools:** ``dfu-util`` flashing tooling is now shipped for arm,
  linux32, linux64, osx, and windows.
- **Bundled firmware:** OPENMV2, OPENMV3, OPENMV4, and OPENMV4P
  openmv/uvc/bootloader images were rebuilt and the bundled firmware version
  was updated to ``3.6.4`` (progressing ``3.5.2`` -> ``3.6.1`` -> ``3.6.2``
  -> ``3.6.4``)
  (`a6df35010 <https://github.com/openmv/qt-creator/commit/a6df35010>`__,
  `c0a6ff6c8 <https://github.com/openmv/qt-creator/commit/c0a6ff6c8>`__,
  `0cc0a7761 <https://github.com/openmv/qt-creator/commit/0cc0a7761>`__).

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

None. Existing projects and scripts continue to work unchanged; the firmware
flashing rewrite is transparent to users.