Baixar QtCreator 21.0.0-beta2 per a Windows

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Qt Creator 21
=============

Qt Creator version 21 contains bug fixes and new features.
It is a free upgrade for all users.

The most important changes are listed in this document. For a complete list of
changes, see the Git log for the Qt Creator sources that you can check out from
the public Git repository or view online at

<https://code.qt.io/cgit/qt-creator/qt-creator.git/log/?id=20.0..v21.0.0>

New plugins
-----------

### HarmonyOS

Adds support for [HarmonyOS](https://consumer.huawei.com/en/harmonyos/).
([Documentation](https://doc-snapshots.qt.io/qtcreator-master/creator-developing-harmonyos.html))

General
-------

Added

• Multiple selection in the `File System` view
([QTCREATORBUG-16](https://bugreports.qt.io/browse/QTCREATORBUG-16))
• `Copy Path Relative to Project` and `Copy Path and Line Number Relative to
Project` to the file context menus
([QTCREATORBUG-9028](https://bugreports.qt.io/browse/QTCREATORBUG-9028))
• The `Disable atomic saving of files` option to
`Preferences > Environment > System` for turning off the atomic saving of files
([QTCREATORBUG-7598](https://bugreports.qt.io/browse/QTCREATORBUG-7598))

Changed

• Moved the `Extensions` browser into `Preferences` mode
• Improved the file dialog for remote paths
• Improved the search keywords of various preferences pages

Fixed

• Performance issues with the `File System` view
([QTCREATORBUG-33785](https://bugreports.qt.io/browse/QTCREATORBUG-33785))
• That JavaScript macros could block endlessly
([QTCREATORBUG-19691](https://bugreports.qt.io/browse/QTCREATORBUG-19691))
• That the `File System` view did not integrate with the version control
system when renaming files or directories
([QTCREATORBUG-34605](https://bugreports.qt.io/browse/QTCREATORBUG-34605))
• That external tools could be run even if they used unavailable macros
([QTCREATORBUG-8490](https://bugreports.qt.io/browse/QTCREATORBUG-8490))
• That external tools could modify read-only editors and replace read-only
selections
([QTCREATORBUG-12405](https://bugreports.qt.io/browse/QTCREATORBUG-12405))
• That external tool actions were enabled even without the context that they
need
([QTCREATORBUG-3837](https://bugreports.qt.io/browse/QTCREATORBUG-3837))
• That the navigation history could contain duplicate entries
([QTCREATORBUG-5179](https://bugreports.qt.io/browse/QTCREATORBUG-5179))
• That icons were scaled wrongly with large UI scaling
([QTCREATORBUG-17829](https://bugreports.qt.io/browse/QTCREATORBUG-17829))
• That nested macros could recurse endlessly
• That the `Show keyboard shortcuts in context menus` setting was not applied
at startup
([QTCREATORBUG-35019](https://bugreports.qt.io/browse/QTCREATORBUG-35019))
• That failures were not reported when extracting archives; for example,
when installing plugins
• Issues with queueing commands in the `!` Locator filter

### Agent Client Protocol (ACP)

Added

• Support for version 2 of the protocol, including elicitation
• Automatic updating of agents from the registry
([QTCREATORBUG-34760](https://bugreports.qt.io/browse/QTCREATORBUG-34760))
• The option to create a new session for a workspace from the history
([QTCREATORBUG-34619](https://bugreports.qt.io/browse/QTCREATORBUG-34619))
• The option to delete sessions (if supported)
• The option to switch the session (if supported)
• Dropping files onto the chat input to add them to the context
• The display of the token usage of a session and of the running turn
([QTCREATORBUG-34869](https://bugreports.qt.io/browse/QTCREATORBUG-34869))
• Scroll wheel zoom for the chat
([QTCREATORBUG-34921](https://bugreports.qt.io/browse/QTCREATORBUG-34921))
• Actions for clearing the chat input history
• Suggestions from the chat input history
([QTCREATORBUG-34877](https://bugreports.qt.io/browse/QTCREATORBUG-34877))
• Filterable pickers for the mode and model, with favorites
([QTCREATORBUG-34469](https://bugreports.qt.io/browse/QTCREATORBUG-34469))
• The working directory of a chat to the tool tip of its tab
([QTCREATORBUG-34995](https://bugreports.qt.io/browse/QTCREATORBUG-34995))
• The option to add agents from the registry directly from the chat
• Progress information while downloading and extracting agents

Changed

• Enabled the ACP integration by default
• The agent registry is now only downloaded when it is needed, after asking
for permission
• The console of an agent is now shown while it starts up, so that it can ask
for input, for example for logging in
• Changed to use tabs for chats only when tabs are used for the editors
• Improved the chat input field and the session options
• The content of additional context files and of editors without a file is
no longer sent to the agent, which reduces the token usage
• The state of including the current editor in the context is now persisted
([QTCREATORBUG-34863](https://bugreports.qt.io/browse/QTCREATORBUG-34863))

Fixed

• That the chat button was only added to the tool bar of text editors
• That file links in the chat were not opened
([QTCREATORBUG-34927](https://bugreports.qt.io/browse/QTCREATORBUG-34927))
• That text after a `<` in the output of agents could be lost
• That discarding changes in the agent preferences did not revert the
selection of a registry template
([QTCREATORBUG-34868](https://bugreports.qt.io/browse/QTCREATORBUG-34868))

### Model Context Protocol

Added

• Support for the MCP revision 2026-07-28
• Authentication of clients with a bearer token
• The option to import and export the Qt Creator MCP server settings
([QTCREATORBUG-34918](https://bugreports.qt.io/browse/QTCREATORBUG-34918))
• The option to enable and disable tools in
`Preferences > AI > Qt Creator MCP Server`
([QTCREATORBUG-34617](https://bugreports.qt.io/browse/QTCREATORBUG-34617))
• The `-mcp-port` command line option
• The option to provide a line and column to the `open_file` tool
• The option to provide a starting line and ending line to the `file_plain_text`
tool
• Tools for the tests, CMake, projects, devices, plugins,
language server protocol, C++, the Qt Creator documentation, profiling, kits,
Qt versions, and debugging
([QTCREATORBUG-34629](https://bugreports.qt.io/browse/QTCREATORBUG-34629),
[QTCREATORBUG-35070](https://bugreports.qt.io/browse/QTCREATORBUG-35070),
[QTCREATORBUG-35071](https://bugreports.qt.io/browse/QTCREATORBUG-35071),
[QTCREATORBUG-35073](https://bugreports.qt.io/browse/QTCREATORBUG-35073),
[QTCREATORBUG-35074](https://bugreports.qt.io/browse/QTCREATORBUG-35074))
• The `-mcp-dump-tools`, `-mcp-enable-tools`, and `-mcp-info-file` command line
options

Changed

• Turned on the plugin and server by default,
requiring authentication with a bearer token and listening on a local port
• Improved `list_projects` and `set_active_project`
• Prefixed the names of the tools with their area
• Grouped the tools by area in the preferences

Fixed

• That modified documents could be overwritten with `set_file_plain_text`
• A crash when sessions are closed
([QTCREATORBUG-35058](https://bugreports.qt.io/browse/QTCREATORBUG-35058))

Help
----

Fixed

• That registered Qt Creator documentation could accumulate over version updates
• The rendering of `sub` and `sup` tags
([QTBUG-102998](https://bugreports.qt.io/browse/QTBUG-102998))
• That animated images were not supported
([QTBUG-111594](https://bugreports.qt.io/browse/QTBUG-111594))
• That opening links to images only showed garbled text
([QTCREATORBUG-31339](https://qt-project.atlassian.net/browse/QTCREATORBUG-31339))

Editing
-------

Added

• The option to open a project file as a project in Qt Creator
• The option to immediately reload unchanged documents
([QTCREATORBUG-34634](https://bugreports.qt.io/browse/QTCREATORBUG-34634))
• `Window > Equally Distribute Splits`
([QTCREATORBUG-30013](https://bugreports.qt.io/browse/QTCREATORBUG-30013))
• That jumping to search results from `Advanced Search` selects the matching
text
([QTCREATORBUG-34592](https://bugreports.qt.io/browse/QTCREATORBUG-34592))
• Support for spell checking text files and comments using the built-in services
on Windows and macOS, and the `enchant-2` library on Linux (if available)
([QTCREATORBUG-1861](https://bugreports.qt.io/browse/QTCREATORBUG-1861))
• The option to resolve merge conflicts directly in the text editor
• `Move Document to Next Split` and `Move Document to Previous Split`
([QTCREATORBUG-8135](https://bugreports.qt.io/browse/QTCREATORBUG-8135))
• Auto-scrolling with the middle mouse button on Windows and macOS
([QTCREATORBUG-8514](https://bugreports.qt.io/browse/QTCREATORBUG-8514))
• A separate `Template Parameter` text highlighting style
([QTCREATORBUG-6225](https://bugreports.qt.io/browse/QTCREATORBUG-6225))
• `Cut Lines`, `Copy Lines`, and `Delete Lines`, which extend the selection to
whole lines

Changed

• Replaced the dialog that opened for externally modified files by non-intrusive
editor notifications
• Changed the tab stop distance to be based on the width of a space, so tabs
and spaces line up
([QTCREATORBUG-10367](https://bugreports.qt.io/browse/QTCREATORBUG-10367))
• Changed Makefiles to always be indented with tabs
([QTCREATORBUG-3408](https://bugreports.qt.io/browse/QTCREATORBUG-3408))
• `Rewrap Paragraph` now acts on all paragraphs of a selection
([QTCREATORBUG-31067](https://bugreports.qt.io/browse/QTCREATORBUG-31067))

Fixed

• A performance issue with the tabs for editors
• That `Clean Whitespace` could wrongly convert tabs to spaces
([QTCREATORBUG-33670](https://bugreports.qt.io/browse/QTCREATORBUG-33670))
• An issue with code folding after saving files
([QTCREATORBUG-8078](https://bugreports.qt.io/browse/QTCREATORBUG-8078))
• That printing a selection printed the whole document
([QTCREATORBUG-12552](https://bugreports.qt.i