Revision control
++ Qt 5.9.3 is a bug-fix release. It maintains both forward and backward
++ compatibility (source and binary) with Qt 5.9.0 through 5.9.2.
++
++ For more details, refer to the online documentation included in this
++ distribution. The documentation is also available online:
++
++
++ The Qt version 5.9 series is binary compatible with the 5.8.x series.
++ Applications compiled for 5.8 will continue to run with 5.9.
++
++ Some of the changes listed in this file include issue tracking numbers
++ corresponding to tasks in the Qt Bug Tracker:
++
++
++ Each of these identifiers can be entered in the bug tracker to obtain more
++ information about a particular change.
++
++ ****************************************************************************
++ * Qt 5.9.3 Changes *
++ ****************************************************************************
++
++ QtCore
++ ------
++
++ - QFileSystemWatcher:
++ * [QTBUG-64171] Fixed a bug that would cause the application to crash if
++ QFileSystemWatcher was created in an auxiliary thread on Windows.
++
++ - QStorageInfo:
++ * [QTBUG-61420] Fixed decoding of volume labels containing certain
++ uncommon characters on Linux.
++
++ - QThreadPool:
++ * Improved performance with large amount of QRunnable items.
++
++ QtGui
++ ------
++
++ - [QTBUG-64239] Fixed memory corruption on scaled emojis.
++ - [QTBUG-63846] Fixed dragging inside a modal window when a
++ QShapedPixmapWindow is used.
++ - [QTBUG-61777] Fixed painting of zero-length lines with scaling.
++ - [QTBUG-61244] Fixed centering of some items in layouts.
++ - [QTBUG-63168] Fixed a crash when reparenting QWindowContainer.
++
++
++ QtNetwork
++ ---------
++
++ - QHostAddress:
++ * [QTBUG-63764] Fixed a problem in QHostAddress not detaching in its
++ setters and thus spoiling shared data.
++
++ - QNetworkAccessManager:
++ * [QTBUG-63075] Added support for HTTP status 308.
++ * [QTBUG-61300] Fixed a problem with mixing headers from different
++ responses.
++ * [QTBUG-63471] Fixed redirects support in HTTP/2 protocol handler.
++ * [QTBUG-63313] Fixed cookies received during a redirect not being
++ applied in the redirect.
++ * [QTBUG-63142] Fixed HTTP method always being changed to GET when
++ redirected with 307 and 308.
++
++ - QNetworkCookieJar:
++ * Fixed cookies with a root path ("/") not matching an empty path ("").
++
++ QtSql
++ ------
++
++ - PostgreSQL:
++ * Fixed handling of binary data for PostgreSQL 9.x and later
++ * Fixed detection of PostgreSQL 9.x and later
++
++ - OCI:
++ * [QTBUG-57765] Fixed a bug that would see some cached results returned
++ when issuing a forward only query
++
++ QtWidgets
++ ---------
++
++ - QAction:
++ * [QTBUG-62006] Ensured setData() does not emit changed() if no change
++ happened.
++
++ - QDockWidget:
++ * [QTBUG-63526] Fixed an issue in QDockWidgets where the widget would
++ not resize despite showing a resize cursor.
++
++ - QHeaderView:
++ * [QTBUG-54601] Fixed resizing when hidden sections were involved.
++ * [QTBUG-64036] Ensured maximumSectionSize property is honored during
++ resizeSections().
++
++ - QListView:
++ * [QTBUG-45427] Fixed the laying out of a QListView in a grid layout
++ after the dataChanged() signal is emitted.
++
++ - QMenuBar
++ * [QTBUG-34160] Fixed a problem with adding the same QAction to more than
++ one menu.
++
++ - QWidget
++ * [QTBUG-56860] Fixed widget losing focus after showing menu second time.
++
++ - QWizard:
++ * [QTBUG-46894] Fixed the shortcut for the Next button on Windows.
++
++
++ Platform-specific changes
++ -------------------------
++
++ - Cocoa:
++ * optimize backingstore flush on 10-bit displays
++ * [QTBUG-57076] [QTBUG-63712] Attach menu items when updating the menubar
++ * [QTBUG-63444] Toggle titlebar transparency to support unified toolbar
++
++ - iOS:
++ * [QTBUG-57428][QTBUG-63660] add support for adding mimetypes other than text
++ on the clipboard
++
++ - Windows:
++ * [QTBUG-63654] Windows font database: Remove clamping of default font size
++
++ - X11:
++ * [QTBUG-48034] Don't misdetect certain trackballs as tablets
++ * [QTBUG-62840] Fix crash on X servers with BGR888 display
++
++ Third-Party Code
++ ----------------
++
++ - Improved documentation about Freetype 2 licenses.
++ - Updated Sqlite to fix CVE-2017-10989.
++ - Updated bundled libpng to version 1.6.34.
++
++ Tools
++ -----
++
++ * qmake:
++ - [QTBUG-63409] Fixed a build error with MSVC when concrt.h was included
++ while exceptions are disabled.
++ - [QTBUG-62985] Fixed a bug that caused the accidental creation of files
++ called "NUL" when using MinGW.