.. _changelog_ide_v4_5_0:

v4.5.0
======

v4.5.0 is a maintenance and groundwork release that bundles OpenMV firmware
4.6.20 and teaches the IDE to negotiate variable-size ``get_state()`` responses
with newer firmware. It remains based on Qt Creator 14.0.2. This release
removes the keyboard shortcuts for two ``Tools`` menu actions, which is a
breaking change for users who relied on them.

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

Highlights
----------

- **Bundled firmware 4.6.20** ships for all supported boards.
- **Variable-size get_state() negotiation** is enabled for firmware 4.6.1 and
  newer, with automatic fallback to the fixed-size format on older firmware.

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

- When connecting to a camera, the IDE now negotiates variable-size
  ``get_state()`` responses based on the reported firmware version, enabling
  the variable-size path for firmware 4.6.1 and newer and falling back to the
  fixed-size format on older firmware
  (`db25810ea <https://github.com/openmv/qt-creator/commit/db25810ea>`__).

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

- **Qt Creator base:** 14.0.2.
- **Bundled OpenMV firmware:** updated to 4.6.20 for all supported boards
  (OPENMV2/3/4/4P/PT, RT1060, and Arduino GIGA, Nicla Vision, Portenta H7,
  Nano 33 BLE Sense, Nano RP2040 Connect)
  (`9126895de <https://github.com/openmv/qt-creator/commit/9126895de>`__).

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

- The keyboard shortcuts for ``Run Bootloader (Load Firmware)`` (was
  ``Ctrl+Shift+L``) and ``Erase Onboard Data Flash`` (was ``Ctrl+Shift+E``)
  have been removed. These ``Tools`` menu actions are now accessible only via
  the menu
  (`1013287ff <https://github.com/openmv/qt-creator/commit/1013287ff>`__).