1Qt 5.12.5 is a bug-fix release. It maintains both forward and backward 2compatibility (source and binary) with Qt 5.12.0 through 5.12.4. 3 4For more details, refer to the online documentation included in this 5distribution. The documentation is also available online: 6 7https://doc.qt.io/qt-5/index.html 8 9The Qt version 5.12 series is binary compatible with the 5.11.x series. 10Applications compiled for 5.11 will continue to run with 5.12. 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* QtCore * 22**************************************************************************** 23 24 - QBitArray: 25 * Fixed two bugs that caused QBitArrays created using fromBits() not to 26 compare equal to the equivalent QBitArray created using other methods 27 if the size was zero or not a multiple of 4. If the size modulus 8 was 28 5, 6, or 7, the data was actually incorrect. 29 30 - QCborStreamReader: 31 * Fixed a bug that caused the QIODevice that the data was being read 32 from not to show the entire CBOR message as consumed. This allows the 33 user to consume data that may follow the CBOR payload. 34 35 - QCryptographicHash: 36 * Fixed a bug that caused the SHA-3 and Keccak algorithms to crash if 37 passed 256 MB of data or more. 38 39 - QObject: 40 * Fixed a resource leak caused by a race condition if multiple QObjects 41 were created at the same time, for the first time in an application, 42 from multiple threads (implies threads not started with QThread). 43 44 - QStorageInfo: 45 * Fixed a bug that caused QStorageInfo to be unable to report all 46 filesystems if the options to mounted filesystems were too long (over 47 900 characters, roughly), such as those found in Docker overlay 48 mounts. 49 50 - QTimeZone: 51 * The IANA timezone database backend now properly follows symlinks even 52 when they point to variable locations like /run or /var (useful when 53 /etc is mounted read-only). 54 55**************************************************************************** 56* QtGui * 57**************************************************************************** 58 59 - QImage: 60 * Improve loading time when loading png files that have the same size as 61 the target. 62 63 - QPixmapCache: 64 * [QTBUG-76694][QTBUG-72523] Ignore unsafe access from non-main threads 65 66 - Text: 67 * [QTBUG-76219] Fixed a bug which could cause the font cache to grow 68 larger than it was supposed to. 69 * [QTBUG-55096][QTBUG-74761] Fixed bug where regular text rendered with 70 a color font would always display in black. 71 * [QTBUG-69546] Fixed a crash bug in 72 QTextDocument::clearUndoRedoStacks(QTextDocument::UndoStack). 73 74**************************************************************************** 75* QtNetwork * 76**************************************************************************** 77 78 - QHostInfo: 79 * Functors used in the lookupHost overloads are now called correctly in 80 the thread of the context object. When used without context object, 81 the thread that initiates the lookup will run the functor, and is 82 required to run an event loop. 83 84 - Windows: 85 * Correctly emit errors when trying to reach unreachable hosts or 86 services 87 88**************************************************************************** 89* QtWidgets * 90**************************************************************************** 91 92 - QGraphicsView: 93 * Ignore disabled items when setting the mouse cursor. 94 95 - QSplashScreen: 96 * On macOS, lower the splash screen when a modal dialog is shown to make 97 sure the user sees the dialog. 98 99 - QSystemTrayIcon: 100 * On macOS, show the icon passed into showMessage in the notification 101 popup 102 103**************************************************************************** 104* Android * 105**************************************************************************** 106 107 - [QTBUG-76293] Fix NDK r20 linking. 108 - [QTBUG-76036] Fixed an issue where menus would not work on 64 bit 109 builds. 110