Qt 5.13.0

What's new in this version:

New Features (within existing modules):
Qt Core:
- Clang: New configure switch -coverage which is useful for fuzzing

Qt GUI:
- Add QImage::convertTo new API (convert a image in place)
- QPainterPath: support clear, reserve and capacity methods with same semantics than QVector::clear() (allocations are preserved)

Qt Network:
- Windows: Secure Channel support for SSL socket (QTBUG-62637)
- OCSP stapling support (QTBUG-12812, QTBUG-17158)

Qt QML:
- Improved support for enums declared in C++
- JavaScript "null" as binding value is now optimized at compile time (QTBUG-72098)
- QML now generates function tables on 64bit windows, making it possible to unwind the stack through JITed functions (QTBUG-50061)

Qt Quick:
- Added support to TableView for hiding rows and columns

Qt Quick Controls 2:
- Added SplitView
- Added cache property to icon

Qt Bluetooth:
- Removed need for pairing on Windows to discover and connect

Qt 3D:
- Added support for importing and exporting OpenGL texture handles
- Added framegraph nodes for fence objects
- Added priority based picking
- Initial glTF 2.0 scene import support added

Qt Wayland Compositor:
- New client buffer integration for linux-dmabuf-unstable-v1 support. Qt clients already had support through the wayland-egl integration
- Support for the wp_viewporter protocol

Qt WebEngine:
- Based on Chromium 73
- Application-local client certificate store
- Client certificate support from QML
- PDF viewing via internal Chromium extension
- Web Notifications API
- Thread-safe and page specific url request interceptors

Qt WebSockets:
Qt Location:
- Added support for GeoPolygons with holes, reflected in MapPolygons and MapPolygonObjects
- Introduced interoperability with GeoJson with import/export functionality

Qt Test:
Qt Multimedia:
- Gapless playback in QML VideoOutput using flushMode property
- Added support of GStreamer for Windows/macOS
- Added HTTP headers and audio roles for Android
- Added QT_MULTIMEDIA_PREFERRED_PLUGINS to specify preferred plugins
- Allowed to build WMF together with DirectShow or disabled by config option -no-wmf or -no-directshow
- Introduced QT_PA_CHANNEL_MAP for QAudioOutput and PulseAudio
- Video/Audio probes in DirectShow
- QMediaResource class is now deprecated
- Platform Changes

Android:
- Android 5.0 (API level 21) is now the minimum supported version
- Added support for content: URLs to QFile
- Added native file dialog support
- Wayland
- New shell integration for fullscreen-shell-unstable-v1
- Technology Preview Modules

Qt Lottie (TP):
- New Platforms

Qt for WebAssembly:
Qt for Automation:
Qt KNX:
- Secure client API added

Qt OPC UA:
- C++ API out of TP
- Added QML API (TP)
- Added secure client C++ API (TP)
- UaCpp and Open62542 backend are feature equal

Qt CoAP (TP):
- DTLS support merged
- Deprecated Modules

The following modules are part of Qt 5.13 release, but deprecated and considered for removal in subsequent releases of Qt:
- Qt Script
- Qt Quick Controls 1
- Qt XmlPatterns

Removed Modules:
The following modules have been deprecated earlier and no longer part of the Qt 5.13 release:
- Qt Canvas 3D