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