.. _changelog_ide_v4_0_11:

v4.0.11
=======

v4.0.11 is a maintenance release that hardens the firmware-flashing tools
against concurrent operations and repairs the Windows installer's bundled USB
driver installation. It stays on Qt Creator 10.0.1 (the same base as the
previous release), and there are no breaking changes.

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

Highlights
----------

- **Thread-safe flashing tools** — bootloader, DFU, firmware-download, and
  device-enumeration operations are now guarded by real mutex locks,
  preventing race conditions when triggered concurrently.
- **Windows USB drivers repaired** — the bundled ``.inf`` driver files,
  previously corrupted by text line-ending normalization, are now fixed and
  re-added, and GIGA/Mimsy driver files were added.
- **Arduino installer exit codes** — the Arduino driver install command now
  accepts the correct installer exit codes (``{5, 1280}``).

Bug fixes
---------

- The firmware-flashing tools (``bossac``, ``dfu-util``, ``imx``,
  ``picotool``, and ``myqserialportinfo``) now guard their work with real
  ``QMutex`` locks instead of plain busy-flag booleans, preventing race
  conditions when bootloader, DFU, firmware-download, and device-enumeration
  operations are triggered concurrently
  (`565576085 <https://github.com/openmv/qt-creator/commit/565576085>`__).

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

- **Qt Creator base:** 10.0.1.
- The Windows installer's bundled USB driver installation was repaired. The
  bundled ``.inf`` driver files were being corrupted by line-ending
  normalization; a ``*.inf binary`` ``.gitattributes`` rule now keeps them
  intact, and the fixed files were re-added: the ``ftdibus.inf`` and
  ``ftdiport.inf`` FTDI drivers
  (`67bed53b2 <https://github.com/openmv/qt-creator/commit/67bed53b2>`__),
  the ``openmv.inf`` and ``pybcdc.inf`` drivers
  (`3c94eb8fe <https://github.com/openmv/qt-creator/commit/3c94eb8fe>`__),
  and the DfuSe ``STtube.inf`` files
  (`962d4f20d <https://github.com/openmv/qt-creator/commit/962d4f20d>`__),
  along with new GIGA and Mimsy driver ``.inf``/``.cat`` files
  (`4a3327ad0 <https://github.com/openmv/qt-creator/commit/4a3327ad0>`__).
- The Arduino driver install command now accepts the correct installer exit
  codes (``{5, 1280}``)
  (`4a3327ad0 <https://github.com/openmv/qt-creator/commit/4a3327ad0>`__).
- The Windows code-signing step now skips the bundled third-party driver
  installers (``dpinst*``/``vcredist*``) so they are not re-signed and
  continue to work
  (`6cf14f7e1 <https://github.com/openmv/qt-creator/commit/6cf14f7e1>`__).

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

None. Existing projects and workflows continue to work unchanged.