Checklist for Qt 6.0 inclusion
Qt 6 will introduce a lot of changes when compared to Qt 5. To begin with, Qt 6 requires C++17 which by itself excludes some compilers which were supported by Qt 5. Other changes are related to APIs, the build system (move from qmake to cmake as Qt's internal build system) or general infrastructure changes in the CI and test setup. Given the deadline for the Qt 6.0 release at the end of 2020, it is likely that not all Qt modules will be ready for the deadline set by the 6.0 release schedule.
Ready-For-Qt6-Inclusion
The general list of Qt release criteria (e.g. string freeze, API reviews done, branching) as outlined by the general releases notes of every Qt 5 release (e.g. release wiki for Qt 5.14) shall continue to apply. However those deadlines and gate criteria are considered to be as "too late" to make the final decision for inclusion. Therefore the notion of an earlier "Ready-for-Qt6-inclusion" checkpoint is being introduced. The current time suggestion for this checkpoint is end of June 2020. A more precise timeline will be suggested later on. Stay tuned.
During this earlier checkpoint each module is assessed against the criteria set out below. It is the maintainers responsibility to ensure that the data is provided for their module on this wiki page. The received feedback is used to evaluate the readiness of each individual module and in turn the readiness of Qt 6. It may also be used to define the list of Qt modules which are on track and may constitute a sufficiently large but nevertheless reduced set of Qt modules ready for Qt 6.0. If the set is deemed too small other considerations such as a delayed release schedule or feature drop may be considered.
If the release criteria are not met/stated maintainers may choose to release their module via the next minor release after 6.0 in the series.
Deadline
We want to have clarity on the list of 6.0 modules by end of June. Adding two weeks of deliberations based in the feedback implies that the 15. June 2020 is the deadline for the module data. To avoid dragging the process out due to missing information, no response implies the module is automatically not included in Qt 6.0.
Release Criteria
- Port to cmake on target for completion
- Target definition:
- Library, examples & tests have been ported
- The module is built & tested in the CI using cmake and tests pass
- Target definition:
- Continuous Integration for Qt 6
- CI runs against qtbase/qtdeclarative SHA no older than 2 weeks
- git repo is part of regular submodule update bot runs in dev (qt5.git/.gitmodules status != ignore)
- Works with the supported platforms in CI for Qt 6.0
- Backlog trajectory
- Link to Jira stating the not completed and completed Qt 6.0 development tasks
- Reviews
- Initial review of public API done (is maintainer aware of/happy with the current state?)
- Are the API changes on track measured against the expectations
- Porting/Documentation information available
- Simple list of completed API changes which may later be used to write Qt6 migration docs
- Other open comments serving as extenuating circumstances
Status per Module
Review Template
Module Name
Status Summary | Not Ready |
---|---|
Cmake port | Not Complete (<Missing part>) |
Jira backlog | JIRA-TICKET |
Recent CI SHA | No |
gitmodules/submodule bot | ignored |
Comments/Circumstance |
State of Essential Modules
Note that the list of essential modules may be revised in light of Qt 6.0.
Qt Core
Status Summary | Ready |
---|---|
Cmake port | Complete |
Jira backlog | QTBUG-71036 |
Recent CI SHA | Yes |
gitmodules/submodule bot | N/A (qtbase). |
Comments/Circumstance | Definition of Ready is relative to QtCore! |
Qt GUI
Status Summary | Ready |
---|---|
Cmake port | Complete |
Jira backlog | QTBUG-72560 |
Recent CI SHA | Yes |
gitmodules/submodule bot | N/A (qtbase). |
Comments/Circumstance |
Qt Multimedia
Qt Multimedia Widgets
Qt Network
Status Summary | Ready |
---|---|
Cmake port | Complete |
Jira backlog | QTBUG-75638 |
Recent CI SHA | Yes |
gitmodules/submodule bot | N/A (qtbase). |
Comments/Circumstance |
Qt QML
Qt Quick
Status Summary | Ready |
---|---|
Cmake port | Complete |
Jira backlog | |
Recent CI SHA | Yes |
gitmodules/submodule bot | Yes |
Comments/Circumstance | Purging the legacy direct OpenGL rendering bits is on-going |
Qt Quick Controls 2
Status Summary | Ready |
---|---|
Cmake port | Complete |
Jira backlog | QTBUG-82256 |
Recent CI SHA | Yes |
gitmodules/submodule bot | Yes |
Comments/Circumstance |
Qt Quick Dialogs
Status Summary | Not Ready |
---|---|
Cmake port | Not started |
Jira backlog | |
Recent CI SHA | Yes |
gitmodules/submodule bot | N/A (qtquickcontrols). |
Comments/Circumstance | Qt Quick Dialogs still live in the Qt Quick Controls 1 repository, which will not be part of Qt 6. Code needs to be moved over to Qt Quick Controls 2 or into a separate repository, and ported to Qt Quick Controls 2. Dialogs in Qt Quick Controls 2 are however very limited (popup panes within the window, not independent top level windows) |
Qt Quick Layouts
Qt SQL
Status Summary | Ready |
---|---|
Cmake port | Complete |
Jira backlog | N/A |
Recent CI SHA | Yes |
gitmodules/submodule bot | N/A (qtbase) |
Comments/Circumstance |
Qt Widgets
Status Summary | Not Ready |
---|---|
Cmake port | Complete |
Jira backlog | QTBUG-69410 |
Recent CI SHA | Yes |
gitmodules/submodule bot | N/A (qtbase). |
Comments/Circumstance | Still some issues left |
State of Add-on Modules
Active Qt
Qt 3D
Qt Android Extras
Not included in Qt 6.0. Will find new home in the more relevant modules over time, and the remaining APIs considered included in later 6.x releases.
Qt Bluetooth
Status Summary | Not Ready |
---|---|
Cmake port | Complete (not yet enabled in CI) |
Jira backlog | QTBUG-62877 |
Recent CI SHA | No |
gitmodules/submodule bot | ignored |
Comments/Circumstance |
Qt Charts
Qt Concurrent
Qt D-Bus
Qt Data Visualization
Qt Gamepad
Qt Graphical Effects
Qt Help
Qt Image Formats
Qt Location
Qt Mac Extras
Not included in Qt 6.0. Will find new home in the more relevant modules over time, and the remaining APIs considered included in later 6.x releases.
Qt Network Authorization
Qt OpenGL
Note, the contents of this module is different in Qt 6 compared to Qt 5. The old, deprecated, Qt 4 era QGL* classes are removed. Now it contains the QOpenGL* classes.
Status Summary | Ready |
---|---|
Cmake port | Complete |
Jira backlog | |
Recent CI SHA | Yes |
gitmodules/submodule bot | N/A (qtbase). |
Comments/Circumstance |
Qt OpenGL Widgets
Note, new in Qt 6. Contains QOpenGLWidget, which used to live in Qt Widgets in Qt 5.
Status Summary | Ready |
---|---|
Cmake port | Complete |
Jira backlog | |
Recent CI SHA | Yes |
gitmodules/submodule bot | N/A (qtbase). |
Comments/Circumstance |
Qt Platform Headers
Will become private API in 6.0
Qt Positioning
Qt Printing Support
Qt Purchasing
Qt Quick 3D
Status Summary | Ready |
---|---|
Cmake port | Complete |
Jira backlog | |
Recent CI SHA | Yes |
gitmodules/submodule bot | Yes |
Comments/Circumstance |
Qt Quick Controls 1
Note, this module is deprecated in Qt 5.15 and therefore may no longer be shipped in Qt 6.
Qt Quick Extras
Qt Quick Timeline
Status Summary | Ready |
---|---|
Cmake port | Complete |
Jira backlog | |
Recent CI SHA | Yes |
gitmodules/submodule bot | Yes |
Comments/Circumstance |
Qt Quick WebGL
Qt Quick Widgets
Note, this module (and so QQuickWidget) is supported for OpenGL and the 'software' scenegraph backend in Qt 6.0, i.e. what Qt 5 supports. It is not compatible with other graphics APIs.
Status Summary | Ready |
---|---|
Cmake port | Complete |
Jira backlog | |
Recent CI SHA | Yes |
gitmodules/submodule bot | N/A (qtdeclarative). |
Comments/Circumstance |
Qt Remote Objects
Status Summary | Not Ready |
---|---|
Cmake port | Not Complete (Needs more testing) |
Jira backlog | QTBUG-84590 |
Recent CI SHA | Yes |
gitmodules/submodule bot | ignored |
Comments/Circumstance | In progress, but at risk of making 6.0 if binary incompatible changes to the module cannot be contained in time |
Qt Script
Note, this module is deprecated in Qt 5.15 and therefore may no longer be shipped in Qt 6.
Qt SCXML
Qt Script Tools
Note, this module is deprecated in Qt 5.15 and therefore may no longer be shipped in Qt 6.
Qt Sensors
Qt Serial Bus
Qt Shader Tools
Note, new in Qt 6.
Status Summary | Ready |
---|---|
Cmake port | Complete |
Jira backlog | |
Recent CI SHA | Yes |
gitmodules/submodule bot | Yes |
Comments/Circumstance |
Qt Speech
Qt SVG
Qt UI Tools
Qt Virtual Keyboard
Status Summary | Not Ready |
---|---|
Cmake port | Not Complete (QTBUG-84324) |
Jira backlog | QTBUG-84322 |
Recent CI SHA | Yes |
gitmodules/submodule bot | Yes |
Comments/Circumstance |
Qt WebChannel
Qt WebEngine
Not included in Qt 6.0.
Qt WebSockets
Qt WebView
Not included in Qt 6.0.
Qt Windows Extras
Not included in Qt 6.0. Will find new home in the more relevant modules over time, and the remaining APIs considered included in later 6.x releases.
Qt X11 Extras
Not included in Qt 6.0. Will find new home in the more relevant modules over time, and the remaining APIs considered included in later 6.x releases.
Qt XML
Qt XML Patterns
Note, this module is deprecated in Qt 5.15 and therefore may no longer be shipped in Qt 6.
Qt Wayland Compositor
Qt X11 Extras
Not included in Qt 6.0. Will find new home in the more relevant modules over time, and the remaining APIs considered included in later 6.x releases.