godot-docs/tutorials/migrating/upgrading_to_godot_4.5.rst

.. _doc_upgrading_to_godot_4.5:

Upgrading from Godot 4.4 to Godot 4.5
=====================================

For most games and apps made with 4.4 it should be relatively safe to migrate to 4.5.
This page intends to cover everything you need to pay attention to when migrating
your project.

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

If you are migrating from 4.4 to 4.5, the breaking changes listed here might
affect you. Changes are grouped by areas/systems.

.. warning::

    In order to support `new Google Play requirements`_ Android now requires
    targeting .NET 9 when exporting C# projects to Android, other platforms
    continue to use .NET 8 as the minimum required version but newer versions
    are supported and encouraged.

    If you are using C# in your project and want to export to Android, you will
    need to upgrade your project to .NET 9 (see `Upgrading to a new .NET version`_
    for instructions).

This article indicates whether each breaking change affects GDScript and whether
the C# breaking change is *binary compatible* or *source compatible*:

- **Binary compatible** - Existing binaries will load and execute successfully without
  recompilation, and the run-time behavior won't change.
- **Source compatible** - Source code will compile successfully without changes when
  upgrading Godot.

Core
~~~~

========================================================================================================================  ===================  ====================  ====================  ============
Change                                                                                                                    GDScript Compatible  C# Binary Compatible  C# Source Compatible  Introduced
========================================================================================================================  ===================  ====================  ====================  ============
**JSONRPC**
Method ``set_scope`` replaced by ``set_method`` optional parameter                                                        |❌|                 |✔️ with compat|      |✔️ with compat|      `GH-104890`_
**Node**
Method ``get_rpc_config`` renamed to ``get_node_rpc_config``                                                              |❌|                 |✔️ with compat|      |✔️ with compat|      `GH-106848`_
Method ``set_name`` changes ``name`` parameter type from ``String`` to ``StringName``                                     |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-76560`_
========================================================================================================================  ===================  ====================  ====================  ============

Rendering
~~~~~~~~~

========================================================================================================================  ===================  ====================  ====================  ============
Change                                                                                                                    GDScript Compatible  C# Binary Compatible  C# Source Compatible  Introduced
========================================================================================================================  ===================  ====================  ====================  ============
**DisplayServer**
Method ``file_dialog_show`` adds a new ``parent_window_id`` optional parameter                                            |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-98194`_
Method ``file_dialog_with_options_show`` adds a new ``parent_window_id`` optional parameter                               |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-98194`_
**RenderingDevice**
Method ``texture_create_from_extension`` adds a new ``mipmaps`` optional parameter                                        |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-105570`_
**RenderingServer**
Method ``instance_reset_physics_interpolation`` removed                                                                   |❌|                 |✔️ with compat|      |✔️ with compat|      `GH-104269`_
Method ``instance_set_interpolated`` removed                                                                              |❌|                 |✔️ with compat|      |✔️ with compat|      `GH-104269`_
========================================================================================================================  ===================  ====================  ====================  ============

.. note::

    In C#, the enum ``RenderingDevice.Features`` breaks compatibility because of the way the bindings generator
    detects the enum prefix. New members were added to the enum in `GH-103941`_ that caused the enum member
    ``Address`` to be renamed to ``BufferDeviceAddress``.

GLTF
~~~~

========================================================================================================================  ===================  ====================  ====================  ============
Change                                                                                                                    GDScript Compatible  C# Binary Compatible  C# Source Compatible  Introduced
========================================================================================================================  ===================  ====================  ====================  ============
**GLTFAccessor**
Property ``byte_offset`` changes type metadata from ``int32`` to ``int64``                                                |✔️|                 |❌|                  |❌|                  `GH-106220`_
Property ``component_type`` changes type from ``int`` to ``GLTFAccessor::GLTFComponentType``                              |✔️|                 |❌|                  |❌|                  `GH-106220`_
Property ``count`` changes type metadata from ``int32`` to ``int64``                                                      |✔️|                 |❌|                  |❌|                  `GH-106220`_
Property ``sparse_count`` changes type metadata from ``int32`` to ``int64``                                               |✔️|                 |❌|                  |❌|                  `GH-106220`_
Property ``sparse_indices_byte_offset`` changes type metadata from ``int32`` to ``int64``                                 |✔️|                 |❌|                  |❌|                  `GH-106220`_
Property ``sparse_indices_component_type`` changes type from ``int`` to ``GLTFAccessor::GLTFComponentType``               |✔️|                 |❌|                  |❌|                  `GH-106220`_
Property ``sparse_values_byte_offset`` changes type metadata from ``int32`` to ``int64``                                  |✔️|                 |❌|                  |❌|                  `GH-106220`_
**GLTFBufferView**
Property ``byte_length`` changes type metadata from ``int32`` to ``int64``                                                |✔️|                 |❌|                  |❌|                  `GH-106220`_
Property ``byte_offset`` changes type metadata from ``int32`` to ``int64``                                                |✔️|                 |❌|                  |❌|                  `GH-106220`_
Property ``byte_stride`` changes type metadata from ``int32`` to ``int64``                                                |✔️|                 |❌|                  |❌|                  `GH-106220`_
========================================================================================================================  ===================  ====================  ====================  ============

.. note::

    As a result of changing the type metadata, the C# bindings changed the type from ``int`` (32-bytes) to ``long`` (64-bytes).

Text
~~~~

========================================================================================================================  ===================  ====================  ====================  ============
Change                                                                                                                    GDScript Compatible  C# Binary Compatible  C# Source Compatible  Introduced
========================================================================================================================  ===================  ====================  ====================  ============
**CanvasItem**
Method ``draw_char`` adds a new ``oversampling`` optional parameter                                                       |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-104872`_
Method ``draw_char_outline`` adds a new ``oversampling`` optional parameter                                               |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-104872`_
Method ``draw_multiline_string`` adds a new ``oversampling`` optional parameter                                           |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-104872`_
Method ``draw_multiline_string_outline`` adds a new ``oversampling`` optional parameter                                   |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-104872`_
Method ``draw_string`` adds a new ``oversampling`` optional parameter                                                     |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-104872`_
Method ``draw_string_outline`` adds a new ``oversampling`` optional parameter                                             |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-104872`_
**Font**
Method ``draw_char`` adds a new ``oversampling`` optional parameter                                                       |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-104872`_
Method ``draw_char_outline`` adds a new ``oversampling`` optional parameter                                               |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-104872`_
Method ``draw_multiline_string`` adds a new ``oversampling`` optional parameter                                           |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-104872`_
Method ``draw_multiline_string_outline`` adds a new ``oversampling`` optional parameter                                   |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-104872`_
Method ``draw_string`` adds a new ``oversampling`` optional parameter                                                     |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-104872`_
Method ``draw_string_outline`` adds a new ``oversampling`` optional parameter                                             |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-104872`_
**RichTextLabel**
Method ``add_image`` adds a new ``alt_text`` optional parameter                                                           |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-76829`_
Method ``add_image`` replaced ``size_in_percent`` parameter by ``width_in_percent`` and ``height_in_percent``             |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-107347`_
Method ``push_strikethrough`` adds optional ``color`` parameter                                                           |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-106300`_
Method ``push_table`` adds a new ``name`` optional parameter                                                              |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-76829`_
Method ``push_underline`` adds optional ``color`` parameter                                                               |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-106300`_
Method ``update_image`` replaced ``size_in_percent`` parameter by ``width_in_percent`` and ``height_in_percent``          |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-107347`_
**TextLine**
Method ``draw`` adds a new ``oversampling`` optional parameter                                                            |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-104872`_
Method ``draw_outline`` adds a new ``oversampling`` optional parameter                                                    |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-104872`_
**TextParagraph**
Method ``draw`` adds a new ``oversampling`` optional parameter                                                            |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-104872`_
Method ``draw_dropcap`` adds a new ``oversampling`` optional parameter                                                    |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-104872`_
Method ``draw_dropcap_outline`` adds a new ``oversampling`` optional parameter                                            |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-104872`_
Method ``draw_line`` adds a new ``oversampling`` optional parameter                                                       |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-104872`_
Method ``draw_line_outline`` adds a new ``oversampling`` optional parameter                                               |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-104872`_
Method ``draw_outline`` adds a new ``oversampling`` optional parameter                                                    |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-104872`_
**TextServer**
Method ``font_draw_glyph`` adds a new ``oversampling`` optional parameter                                                 |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-104872`_
Method ``font_draw_glyph_outline`` adds a new ``oversampling`` optional parameter                                         |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-104872`_
Method ``shaped_text_draw`` adds a new ``oversampling`` optional parameter                                                |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-104872`_
Method ``shaped_text_draw_outline`` adds a new ``oversampling`` optional parameter                                        |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-104872`_
**TreeItem**
Method ``add_button`` adds a new ``alt_text`` optional parameter                                                          |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-76829`_
**TextServerExtension**
Method ``_font_draw_glyph`` adds a new ``oversampling`` optional parameter                                                |❌|                 |❌|                  |❌|                  `GH-104872`_
Method ``_font_draw_glyph_outline`` adds a new ``oversampling`` optional parameter                                        |❌|                 |❌|                  |❌|                  `GH-104872`_
Method ``_shaped_text_draw`` adds a new ``oversampling`` optional parameter                                               |❌|                 |❌|                  |❌|                  `GH-104872`_
Method ``_shaped_text_draw_outline`` adds a new ``oversampling`` optional parameter                                       |❌|                 |❌|                  |❌|                  `GH-104872`_
========================================================================================================================  ===================  ====================  ====================  ============

XR
~~

============================================================================================================================================================  ===================  ====================  ====================  ============
Change                                                                                                                                                        GDScript Compatible  C# Binary Compatible  C# Source Compatible  Introduced
============================================================================================================================================================  ===================  ====================  ====================  ============
**OpenXRAPIExtension**
Method ``register_composition_layer_provider`` changes ``extension`` parameter type from ``OpenXRExtensionWrapperExtension`` to ``OpenXRExtensionWrapper``    |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-104087`_
Method ``register_projection_views_extension`` changes ``extension`` parameter type from ``OpenXRExtensionWrapperExtension`` to ``OpenXRExtensionWrapper``    |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-104087`_
Method ``unregister_composition_layer_provider`` changes ``extension`` parameter type from ``OpenXRExtensionWrapperExtension`` to ``OpenXRExtensionWrapper``  |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-104087`_
Method ``unregister_projection_views_extension`` changes ``extension`` parameter type from ``OpenXRExtensionWrapperExtension`` to ``OpenXRExtensionWrapper``  |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-104087`_
**OpenXRBindingModifierEditor**
Type ``OpenXRBindingModifierEditor`` changed API type from Core to Editor                                                                                     |❌|                 |❌|                  |❌|                  `GH-103869`_
**OpenXRInteractionProfileEditor**
Type ``OpenXRInteractionProfileEditor`` changed API type from Core to Editor                                                                                  |❌|                 |❌|                  |❌|                  `GH-103869`_
**OpenXRInteractionProfileEditorBase**
Type ``OpenXRInteractionProfileEditorBase`` changed API type from Core to Editor                                                                              |❌|                 |❌|                  |❌|                  `GH-103869`_
============================================================================================================================================================  ===================  ====================  ====================  ============

.. note::

    Classes ``OpenXRBindingModifierEditor``, ``OpenXRInteractionProfileEditor``, and ``OpenXRInteractionProfileEditorBase``
    are only available in the editor. Using them outside of the editor will result in a compilation error.

    In C#, this means the types are moved from the ``GodotSharp`` assembly to the ``GodotSharpEditor`` assembly.
    Make sure to wrap code that uses these types in a ``#if TOOLS`` block to ensure they are not included in an exported game.

    **This change was also backported to 4.4.1.**

Editor plugins
~~~~~~~~~~~~~~

========================================================================================================================  ===================  ====================  ====================  ============
Change                                                                                                                    GDScript Compatible  C# Binary Compatible  C# Source Compatible  Introduced
========================================================================================================================  ===================  ====================  ====================  ============
**EditorExportPlatform**
Method ``get_forced_export_files`` adds a new ``preset`` optional parameter                                               |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-71542`_
**EditorUndoRedoManager**
Method ``create_action`` adds a new ``mark_unsaved`` optional parameter                                                   |✔️|                 |✔️ with compat|      |✔️ with compat|      `GH-106121`_
**EditorExportPlatformExtension**
Method ``_get_option_icon`` changes return type from ``ImageTexture`` to ``Texture2D``                                    |✔️|                 |❌|                  |❌|                  `GH-108825`_
========================================================================================================================  ===================  ====================  ====================  ============

Behavior changes
----------------

In 4.5 some behavior changes have been introduced, which might require you to adjust your project.

3D Model Import
~~~~~~~~~~~~~~~

A fix has been made to the 3D model importers to correctly handle non-joint nodes within a skeleton hierarchy (`GH-104184`_).
To preserve compatibility, the default behavior is to import existing files with the same behavior as before (`GH-107352`_).
New ``.gltf``, ``.glb``, ``.blend``, and ``.fbx`` files (without a corresponding ``.import`` file)
will be imported with the new behavior. However, for existing files, if you want to use the
new behavior, you must change the "Naming Version" option at the bottom of the Import dock:

.. image:: img/gltf_naming_version.webp

Core
~~~~

.. note::

    :ref:`ProjectSettings.add_property_info() <class_ProjectSettings_method_add_property_info>`
    now prints a warning when the dictionary parameter has missing keys or invalid keys.
    Most importantly, it will now warn when a ``usage`` key is passed, as this key is not used.
    This was also the case before 4.5, but it was silently ignored instead.
    As a reminder, to set property usage information correctly, you must use
    :ref:`ProjectSettings.set_as_basic() <class_ProjectSettings_method_set_as_basic>`,
    :ref:`ProjectSettings.set_restart_if_changed() <class_ProjectSettings_method_set_restart_if_changed>`,
    or :ref:`ProjectSettings.set_as_internal() <class_ProjectSettings_method_set_as_internal>` instead.

.. note::

    In C#, ``StringExtensions.PathJoin`` now avoids adding an extra path separator when the original string is empty,
    or when the appended path starts with a path separator (`GH-105281`_).

.. note::

    In C#, ``StringExtensions.GetExtension`` now returns an empty string instead of the original string
    when the original string does not contain an extension (`GH-108041`_).

.. note::

    In C#, the ``Quaternion(Vector3, Vector3)`` constructor now correctly creates a quaternion representing
    the shortest arc between the two input vectors. Previously, it would return incorrect values for certain inputs
    (`GH-107618`_).

Physics
~~~~~~~

.. note::

    When the 3D physics engine is set to Jolt Physics, you will now always have overlaps between ``Area3D`` and static
    bodies reported by default, as the ``physics/jolt_physics_3d/simulation/areas_detect_static_bodies`` project setting
    has been removed (`GH-105746`_). If you still want such overlaps to be ignored, you will need to change the collision mask
    or layer of either the ``Area3D`` or the static body instead.

Text
~~~~

.. note::

    In GDScript, calls to functions ``RichTextLabel::add_image`` and ``RichTextLabel::update_image`` will continue to work,
    but the ``size_in_percent`` argument will now be used as the value for ``width_in_percent`` and ``height_in_percent``
    will default to ``false`` (`GH-107347`_). To restore the previous behavior, you can explicitly set ``height_in_percent``
    to the same value you were passing as ``size_in_percent``.

.. |❌| replace:: :abbr:`❌ (This API breaks compatibility.)`
.. |✔️| replace:: :abbr:`✔️ (This API does not break compatibility.)`
.. |✔️ with compat| replace:: :abbr:`✔️ (This API does not break compatibility. A compatibility method was added.)`

.. _GH-71542: https://github.com/godotengine/godot/pull/71542
.. _GH-76560: https://github.com/godotengine/godot/pull/76560
.. _GH-76829: https://github.com/godotengine/godot/pull/76829
.. _GH-98194: https://github.com/godotengine/godot/pull/98194
.. _GH-103869: https://github.com/godotengine/godot/pull/103869
.. _GH-103941: https://github.com/godotengine/godot/pull/103941
.. _GH-104087: https://github.com/godotengine/godot/pull/104087
.. _GH-104184: https://github.com/godotengine/godot/pull/104184
.. _GH-104269: https://github.com/godotengine/godot/pull/104269
.. _GH-104872: https://github.com/godotengine/godot/pull/104872
.. _GH-104890: https://github.com/godotengine/godot/pull/104890
.. _GH-105281: https://github.com/godotengine/godot/pull/105281
.. _GH-105570: https://github.com/godotengine/godot/pull/105570
.. _GH-105746: https://github.com/godotengine/godot/pull/105746
.. _GH-106121: https://github.com/godotengine/godot/pull/106121
.. _GH-106220: https://github.com/godotengine/godot/pull/106220
.. _GH-106300: https://github.com/godotengine/godot/pull/106300
.. _GH-106848: https://github.com/godotengine/godot/pull/106848
.. _GH-107347: https://github.com/godotengine/godot/pull/107347
.. _GH-107352: https://github.com/godotengine/godot/pull/107352
.. _GH-107618: https://github.com/godotengine/godot/pull/107618
.. _GH-108041: https://github.com/godotengine/godot/pull/108041
.. _GH-108825: https://github.com/godotengine/godot/pull/108825

.. _new Google Play requirements: https://android-developers.googleblog.com/2025/05/prepare-play-apps-for-devices-with-16kb-page-size.html
.. _Upgrading to a new .NET version: https://learn.microsoft.com/en-us/dotnet/core/install/upgrade