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++ // Copyright (C) 2021 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only
++
++ /*!
++ \page qtscxml-changes-qt6.html
++ \title Changes to Qt SCXML
++ \ingroup changes-qt-5-to-6
++ \brief Migrate Qt SCXML to Qt 6.
++
++ Qt 6 is a result of the conscious effort to make the framework more
++ efficient and easy to use.
++
++ We try to maintain binary and source compatibility for all the public
++ APIs in each release. But some changes were inevitable in an effort to
++ make Qt a better framework.
++
++ In this topic we summarize those changes in Qt SCXML module, and provide
++ guidance to handle them.
++
++ \section1 Changes overview
++
++ The Qt SCXML module is largely source compatible with the Qt5
++ version and users of the library should be able to continue with no or
++ minor changes to their project.
++
++ \section1 API changes
++
++ \section2 QScxmlEcmaScriptDataModel API removal
++
++ The ecmascript datamodel, when enabled, introduces a dependency to the Qt QML library.
++ In Qt5 this depedendency is created at build time, whereas in Qt6 the dependency
++ is moved to runtime (internally a plugin). As a consequence the
++ QScxmlEcmaScriptDataModel class is no longer part of the public API.
++
++ \section1 Build system
++
++ As with Qt6 in general, the Qt SCXML module has cmake support in addition
++ to qmake.
++
++ \section1 QML imports
++
++ The QML import versioning is optional unless one has a specific
++ reason for not using the latest. Generally speaking the versioned imports
++ work from version 5.8 to 6.x, where 'x' is the current minor release.
++ */