1Qt 5.9.3 is a bug-fix release. It maintains both forward and backward 2compatibility (source and binary) with Qt 5.9.0 through 5.9.2. 3 4For more details, refer to the online documentation included in this 5distribution. The documentation is also available online: 6 7http://doc.qt.io/qt-5/index.html 8 9The Qt version 5.9 series is binary compatible with the 5.8.x series. 10Applications compiled for 5.8 will continue to run with 5.9. 11 12Some of the changes listed in this file include issue tracking numbers 13corresponding to tasks in the Qt Bug Tracker: 14 15https://bugreports.qt.io/ 16 17Each of these identifiers can be entered in the bug tracker to obtain more 18information about a particular change. 19 20**************************************************************************** 21* Qt 5.9.3 Changes * 22**************************************************************************** 23 24QtCore 25------ 26 27 - QFileSystemWatcher: 28 * [QTBUG-64171] Fixed a bug that would cause the application to crash if 29 QFileSystemWatcher was created in an auxiliary thread on Windows. 30 31 - QStorageInfo: 32 * [QTBUG-61420] Fixed decoding of volume labels containing certain 33 uncommon characters on Linux. 34 35 - QThreadPool: 36 * Improved performance with large amount of QRunnable items. 37 38QtGui 39------ 40 41 - [QTBUG-64239] Fixed memory corruption on scaled emojis. 42 - [QTBUG-63846] Fixed dragging inside a modal window when a 43 QShapedPixmapWindow is used. 44 - [QTBUG-61777] Fixed painting of zero-length lines with scaling. 45 - [QTBUG-61244] Fixed centering of some items in layouts. 46 - [QTBUG-63168] Fixed a crash when reparenting QWindowContainer. 47 48 49QtNetwork 50--------- 51 52 - QHostAddress: 53 * [QTBUG-63764] Fixed a problem in QHostAddress not detaching in its 54 setters and thus spoiling shared data. 55 56 - QNetworkAccessManager: 57 * [QTBUG-63075] Added support for HTTP status 308. 58 * [QTBUG-61300] Fixed a problem with mixing headers from different 59 responses. 60 * [QTBUG-63471] Fixed redirects support in HTTP/2 protocol handler. 61 * [QTBUG-63313] Fixed cookies received during a redirect not being 62 applied in the redirect. 63 * [QTBUG-63142] Fixed HTTP method always being changed to GET when 64 redirected with 307 and 308. 65 66 - QNetworkCookieJar: 67 * Fixed cookies with a root path ("/") not matching an empty path (""). 68 69QtSql 70------ 71 72 - PostgreSQL: 73 * Fixed handling of binary data for PostgreSQL 9.x and later 74 * Fixed detection of PostgreSQL 9.x and later 75 76 - OCI: 77 * [QTBUG-57765] Fixed a bug that would see some cached results returned 78 when issuing a forward only query 79 80QtWidgets 81--------- 82 83 - QAction: 84 * [QTBUG-62006] Ensured setData() does not emit changed() if no change 85 happened. 86 87 - QDockWidget: 88 * [QTBUG-63526] Fixed an issue in QDockWidgets where the widget would 89 not resize despite showing a resize cursor. 90 91 - QHeaderView: 92 * [QTBUG-54601] Fixed resizing when hidden sections were involved. 93 * [QTBUG-64036] Ensured maximumSectionSize property is honored during 94 resizeSections(). 95 96 - QListView: 97 * [QTBUG-45427] Fixed the laying out of a QListView in a grid layout 98 after the dataChanged() signal is emitted. 99 100 - QMenuBar 101 * [QTBUG-34160] Fixed a problem with adding the same QAction to more than 102 one menu. 103 104 - QWidget 105 * [QTBUG-56860] Fixed widget losing focus after showing menu second time. 106 107 - QWizard: 108 * [QTBUG-46894] Fixed the shortcut for the Next button on Windows. 109 110 111Platform-specific changes 112------------------------- 113 114 - Cocoa: 115 * optimize backingstore flush on 10-bit displays 116 * [QTBUG-57076] [QTBUG-63712] Attach menu items when updating the menubar 117 * [QTBUG-63444] Toggle titlebar transparency to support unified toolbar 118 119 - iOS: 120 * [QTBUG-57428][QTBUG-63660] add support for adding mimetypes other than text 121 on the clipboard 122 123 - Windows: 124 * [QTBUG-63654] Windows font database: Remove clamping of default font size 125 126 - X11: 127 * [QTBUG-48034] Don't misdetect certain trackballs as tablets 128 * [QTBUG-62840] Fix crash on X servers with BGR888 display 129 130Third-Party Code 131---------------- 132 133 - Improved documentation about Freetype 2 licenses. 134 - Updated Sqlite to fix CVE-2017-10989. 135 - Updated bundled libpng to version 1.6.34. 136 137Tools 138----- 139 140 * qmake: 141 - [QTBUG-63409] Fixed a build error with MSVC when concrt.h was included 142 while exceptions are disabled. 143 - [QTBUG-62985] Fixed a bug that caused the accidental creation of files 144 called "NUL" when using MinGW. 145