Revision control
++ Qt 5.7.1 is a bug-fix release. It maintains both forward and backward
++ compatibility (source and binary) with Qt 5.7.0.
++
++ For more details, refer to the online documentation included in this
++ distribution. The documentation is also available online:
++
++
++ The Qt version 5.7 series is binary compatible with the 5.6.x series.
++ Applications compiled for 5.6 will continue to run with 5.7.
++
++ 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.
++
++ This release contains all fixes included in the Qt 5.6.2 release.
++
++ ****************************************************************************
++ * Important Behavior Changes *
++ ****************************************************************************
++
++ - [QTBUG-45031] The NSURLConnection backend of QNetworkAccessManager has
++ been removed, since SecureTransport is the default SSL backend on iOS
++ and is enabled by default. This means that building with -no-openssl
++ -no-securetransport will no longer provide SSL capabilities on iOS.
++
++ - QtCore / QDataStream:
++ * [QTBUG-54022] Incomplete reads of Qt containers are now handled same
++ way as for primitive types, meaning that previous errors are latched.
++
++ ****************************************************************************
++ * Library *
++ ****************************************************************************
++
++ QtCore
++ ------
++
++ - QLockFile:
++ * Fixed permissions on lock files on Unix to allow for adjustments via
++ umask.
++
++ - QMimeType:
++ * [QTBUG-50776] QMimeType::comment() now uses the default locale rather
++ than system locale, so that applications can control which language is
++ being used.
++
++ - QUrl:
++ * QUrl::resolved() no longer treats a URL with a scheme as a relative URL
++ if it matches this URL's scheme. For now it still treats "file:name.txt"
++ as relative for compatibility, but be warned that in Qt 5.8 it will no
++ longer consider those to be relative. Both isRelative() and RFC 3986 say
++ that such URLs are not relative, so starting from Qt 5.8, resolved() will
++ return them as is.
++
++ - QXmlStreamReader:
++ * Fixed a bug in the XML parser that prevented to load XML that
++ contained invalid characters for XML 1.0.
++
++ - QXmlStreamWriter:
++ * Fixed a bug that prevented the generation of valid XML files when
++ using encoding with 8 bit per character but not ASCII compatible.
++ QXMLStreamWriter generated XML markup using always ASCII in this case.
++
++ QtGui
++ -----
++
++ - QGuiApplication:
++ * [QTBUG-51703] Fixed a bug that would cause QGuiApplication::sync() to
++ be left undefined for Qt builds without session management support.
++
++ - QIconLoaderEngine:
++ * Fixed theme lookup for scalable entries
++
++ - QTextDocument:
++ * [QTBUG-48182] Fixed a bug that would return a wrong position when
++ searching backward from the end of the document.
++
++ - Text:
++ * [QTBUG-49452] Fixed a performance regression in Freetype engine that
++ was introduced in Qt 5.5.
++ * [QTBUG-53911] Fixed a crash that could happen if you were doing many
++ different text layouts with different fonts and superscript or
++ subscript alignment.
++ * [QTBUG-42033] Fixed bug where a QTextLayout with
++ ShowLineAndParagraphSeparators would modify the layout's input string.
++ * [QTBUG-54180] Fixed performance regression when rapidly switching
++ between a large set of fonts.
++
++ QtNetwork
++ ---------
++
++ - QSslSocket:
++ * [QTBUG-55170] Fixed a bug in SecureTransport backend that would cause
++ a memory usage growth in case 'readBufferMaxSize' is set.
++ * [QTBUG-52975] Fixed a bug in SecureTransport backend where transmit
++ was using invalid SSL context and reporting (incorrectly) some irrelevant
++ errors as a result.
++
++ QtSql
++ -----
++
++ - [QTBUG-53969][QTBUG-53237] Fixed QSqlQuery::prepare value truncation
++ error when using UNSIGNED values in a MySQL database.
++
++ QtWidgets
++ ---------
++
++ - QAbstractItemDelegate:
++ * [QTBUG-16469] Show localized detailed tooltips and "What's this?"
++ texts.
++
++ - QTreeView:
++ * [QTBUG-52793] Fixed a key navigation bug when the columns were
++ reordered.
++
++ ****************************************************************************
++ * Platform-specific Changes *
++ ****************************************************************************
++
++ Android
++ -------
++
++ - [QTBUG-50724] Added support for clang compiler
++ - [QTBUG-53511] Fixed CJK font resolution on Android 7.
++
++ FreeBSD
++ -------
++
++ - The freebsd-g++ mkspec was moved back and no longer requires the
++ "unsupported/" prefix, matching the FreeBSD ports tree, as FreeBSD 9.3
++ still defaults to using GCC. Users of GCC that did not previously use
++ the ports patch will need to adapt their build scripts and drop the
++ "unsupported/" prefix.
++
++ Linux
++ -----
++
++ - [QTBUG-54733] It is now possible to opt out from installing signal
++ handlers when running with eglfs and linuxfb by setting the
++ QT_QPA_NO_SIGNAL_HANDLER environment variable to a non-zero value.
++ - [QTBUG-55140] xcb with EGL and OpenGL ES, as well as eglfs with the
++ eglfs_x11 backend, are now supported on DRIVE CX boards when using the
++ linux-drive-cx-g++ device spec.
++
++
++ Windows
++ -------
++
++ - [QTBUG-41186] QWindow::fromWinId() may return 0 when passing invalid
++ window handles.
++ - [QTBUG-55595] Fixed crash when loading color fonts from data.
++ - [QTBUG-55097] Fixed rendering Adobe/Mozilla format color fonts with
++ other colors than black after Windows 10 Anniversary update.
++ - [QTBUG-54494] Fixed stretch when combined with either no or vertical
++ hinting preference or a device pixel ratio different from 1.
++ - [QTBUG-51024] Fixed height of text bounding box when using no or
++ vertical hinting preference, or when the device pixel ratio is
++ different from 1.
++
++ ****************************************************************************
++ * Tools *
++ ****************************************************************************
++
++ configure & build system
++ ------------------------
++
++ - [QTBUG-35886][QTBUG-51417] Fixed Fontconfig vs. system FreeType
++ configuration.
++ - [QTBUG-43784][X11] Fixed detection of GLX with -qt-xcb.
++ - [QTBUG-51534][Windows] The configure.exe bootstrapping now prefers
++ cl over clang-cl, to avoid header incompatibility problems.
++ - [QTBUG-52940] Fixed missing plugins.qmltypes files in static builds.
++ - [QTBUG-52951] Fixed dynamic library support detection for platforms
++ without libdl.
++ - [QTBUG-53038] Fixed running of configure tests outside qtbase when
++ cross compiling on Windows (for example for Android).
++ - [QTBUG-53312] The flags supplied by the configure -D/-I/-L/-l options
++ are now applied after Qt's own flags. This helps in some cases when
++ the provided paths contain files which conflict with the Qt build.
++ - [QTBUG-53926] Fixed linkage of QML plugins in static prefix builds.
++ - [QTBUG-55011][Unix] Fixed -no-pkg-config being ignored by some
++ configure tests, which led to build failures later on.
++ - Fixed configure tests outside qtbase when $MAKEFLAGS contains the
++ -i flag.
++ - [Android] Some unused plugins are not built anymore.
++ - [MinGW] Added support for -separate-debug-info.
++ - [Unix] Added configure -no-opengles3 option.
++ - [Unix] Fixed MySQL detection/use on RHEL 6.6.
++
++ qmake
++ -----
++
++ - [QTBUG-41830] Fixed nested custom functions inheriting their callers'
++ arguments.
++ - [QTBUG-53895][MSVC] Started using separate PDB files for compiling
++ and linking.
++ - [QTBUG-54036][Darwin] Fixed installation of debug symbols.
++ - [QTBUG-54299] Various QMAKE_EXTRA_COMPILERS' .depends entries are now
++ appended to rather than overwritten.
++ - [QTBUG-54346][MSys/Apple] Fixed detection of QMAKE_DEFAULT_{INC,LIB}DIRS.
++ - [QTBUG-54550] Fixed access to freed memory in $$absolute_path().
++ - [QTBUG-54674] The obsolete -target xp is now properly rejected.
++ - [QTBUG-55183][nmake] _WINDLL is now automatically defined when building
++ a DLL, consistently with Visual Studio.
++ - [QTBUG-55505] Fixed build of projects with spaces in the source or build
++ path against static builds of Qt.
++ - [QTBUG-55649][QTBUG-55915][Xcode] Fixed support for Xcode 8.
++ - [QTBUG-56162][MinGW] Fixed -release -force-debug-info missing both
++ optimization and debug info.
++ - Fixed several cases where the error() function would not abort qmake.
++ - Interrupting a command run via system() will now abort qmake as well.
++ - The packagesExist() function will now warn when used when Qt was
++ configured with -no-pkg-config.
++ - [Android] The default compiler flags were adjusted to match newer
++ NDK versions.
++ - [Darwin] Fixed detection of QMAKE_DEFAULT_INCDIRS.
++ - [Darwin][make] Added support for building Xcode asset catalogs.