New Features in Qt 5.11
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Note that this page is work in progress until the Qt 5.11 Beta release.
New Features (within existing modules)
- Qt Core
- QFloat16 now has two methods for bulk conversion between float16 and float, using hardware SIMD acceleration if available at runtime.
- QVarLengthArray now has rvalue reference versions of prepend and insert, and can hold movable-only datatypes such as std::unique_ptr.
- QVector now has rvalue reference versions of prepend and insert.
- QUuid toString() and toByteArray() can now takes a parameter specifying the generated format.
- Qt Network
- ALPN (via Secure Transport) and thus HTTP/2 negotiation are now supported on iOS (starting from version 11)
- QNetworkRequest now has the Http2DirectAttribute to start a connection in HTTP/2 without first negotiating.
- Qt Qml
- Rewritten the compiler pipeline. We now directly generate byte code from the AST, and store that as our intermediate representation
- Optimized handling of JS calls, bringing large improvements especially when calling small functions
- Newly written byte code interpreter with a vastly improved performance (at 80-90% of the JIT in Qt 5.10)
- .qmlc files are now fully platform independent and store byte code instead of assembly
- New hotspot JIT that generated optimised assembly for byte code that gets repeatedly executed
- CONFIG += qmlcompiler now also works in the open source version, by embedding the generated byte code at compile time
- Qt Quick
- Expanded support for loading compressed textures in Image element. Now supports both .ktx and .pkm container file formats.
- Qt 3D
- Qt Multimedia
- Qt WebEngine
- Updated to Chromium 64 or 65.
- Embedded DevTools without using a port and separate browser.
- Installable cookie filter.
- Quota permissions.
- Qt Designer
- Added support for ID-based translations ( QTBUG-34610 )
- Qt GUI
- On Windows Desktop, the accessibility support was updated and vastly improved. The implementation is now based on Microsoft UI Automation (it was formerly based on Microsoft Active Accessibility).
- Linux Printing now supports more CUPS options with the advanced tab in QPrintPropertiesDialog (QTBUG-54464) allowing many additional settings (amongst them arbitrary page ranges QTBUG-1311).
- Qt SerialBus
- Added J2534 Pass-Thru CAN plugin for communication between a computer and a vehicle
- Added description, serial number and channel to QCanBusDeviceInfo, as far as supported by the various plugins.
- Introduced categorized logging to the CAN bus module which can be enabled by the "qt.canbus" and "qt.canbus.plugins.<pluginname>" filters.
- QCanBusFrame::isValid() now checks for invalid CAN FD payload lengths. E.g. 24 is a valid CAN FD payload length, but 28 is not.
New Modules
- No new modules added
Platform Changes
- Jira tracking for 5.11 changes
- MSVC2013 support removed from the code base
- Improved Accessibility support on Win32 by adopting the Windows UI Automation framework
- XCB
- Support for missing 'dead keys' such as dasia and diaeresis.
- eglfs
- Added support for framebuffer formats other than XRGB8888 (RGB565, ARGB8888).
- Added experimental screen cloning support (by scanning out the same framebuffer on multiple crtcs)
- Added support for operating with DRM render nodes (/dev/dri/renderDnn) in a headless mode transparent to applications
- Added a makespec for Renesas R-Car M3
- Added experimental backend for compositing Qt content with other hardware layers via VSP2 on Renesas devices
Technology Preview Modules
- Qt Remote Objects (TP3) - A module that allows you to easily share QObject interfaces (Signals/Slots/Properties) between processes or devices.
- Qt WebGL Streaming Plugin (TP2) - Stream applications to browsers over the network
Deprecated Modules
The following modules are part of Qt 5.11 release, but deprecated and considered for removal in subsequent releases of Qt:
- Qt Script
Configurations