Add initial Qt 5.12.12 release note

Task-number: QTBUG-97203
Change-Id: I6d21c3c7ddd8314fca353426bb57c72d8949af94
Reviewed-by: Jani Heikkinen <jani.heikkinen@qt.io>
Reviewed-by: Akseli Salovaara <akseli.salovaara@qt.io>

1 files changed, 159 insertions, 0 deletions

diff --git a/qt/5.12.12/release-note.md b/qt/5.12.12/release-note.md
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+Release note  
+============  
+Qt 5.12.12 release is a patch release made on the top of Qt 5.12.11.  
+As a patch release, Qt 5.12.12 does not add any new functionality but provides  
+bug fixes and other improvements and maintains both forward and backward  
+compatibility (source and binary) with Qt 5.12.11.  
+  
+For detailed information about Qt 5.12, refer to the online documentation  
+included in this distribution. The documentation is also available online:  
+  
+  https://doc.qt.io/qt-5.12/index.html  
+  
+The Qt version 5.12 series is binary compatible with the 5.11.x series.  
+Applications compiled for 5.11 will continue to run with 5.12.  
+  
+Some of the changes listed in this file include issue tracking numbers  
+corresponding to tasks in the Qt Bug Tracker:  
+  
+  https://bugreports.qt.io/  
+  
+Each of these identifiers can be entered in the bug tracker to obtain more  
+information about a particular change.   
+  
+Important Changes  
+-----------------  
+  
+### qtbase  
+* eeedebf33e Update bundled libjpeg-turbo to version 2.1.0  
+libjpeg-turbo was updated to version 2.1.0  
+  
+* 3ae80cfa8e SQLite: Update SQLite to v3.35.5  
+Updated SQLite to v3.35.5  
+  
+* c5e45d735c QVarLengthArray: fix aliasing error in insert(it, n, v)  
+Fixed an aliasing bug affecting insertions of objects aliasing existing  
+elements.  
+  
+* 419505ab01 QXpmHandler: fix re-entrancy bug in xpm_color_name  
+Fixed a race condition when concurrently writing .xpm files.  
+  
+* 1d8bcfbb55 QXpmHandler: actually limit characters-per-pixel to four  
+Instead of writing a corrupt file, rejects to write XPM files with more  
+than 64^4 colors (more than four characters per pixel) now.  
+  
+* 508c39a3ae Fix license information for libjpeg-turbo  
+Clarified that libjpeg-turbo is actually covered by three licenses, not  
+only IJG.  
+  
+* ec2f36c6b2 Update bundled libjpeg-turbo to version 2.1.1  
+libjpeg-turbo was updated to version 2.1.1  
+  
+* a268e8c4f7 SQLite: Update SQLite to v3.36.0  
+Updated SQLite to v3.36.0  
+  
+### qtwayland  
+* 190646bc Fix the logic for decoding modifiers map in Wayland text  
+input protocol  
+Fix modifiers map decoding logic when receiving the map from the  
+compositor.  
+  
+### qtimageformats  
+* 370dd41 Update bundled libtiff to version 4.3.0  
+Bundled libtiff was updated to version 4.3.0  
+  
+### qtvirtualkeyboard  
+* 4ab966e9 Fix high CPU utilization caused by key repeat timer  
+Fixed high CPU utilization caused by key repeat timer.  
+  
+  
+Fixes  
+-----  
+  
+### qtbase  
+* QTBUG-91770 qvnc: Arbitrary memory read vulnerability  
+* QTBUG-89899 Integer-overflow in QFixed::QFixed  
+* QTBUG-89172 Integer-overflow in QFixed::fromReal(qreal r) through  
+QImage::.loadFromData(QByteArray);  
+* QTBUG-93494 iOS A11Y VoiceOver: QAccessible::EditableText not  
+implemented as "TextField" and value is missing last character  
+* QTBUG-93779 [elxr] (error #412) unresolved symbols: 1  
+* QTBUG-94070 Memory corruption in sqlite plugin  
+* QTBUG-65637 Window minimizing broken after building QT app with Mac OS  
+High Sierra SDK  
+* QTBUG-89379 QQuickWindow::QtTextRendering cause font problem on Apple  
+M1  
+* QTBUG-95005 Typo in QOpenGLPaintDevice::dotsPerMeterY  
+* QTBUG-95429 Expired certificates in tst_QSslCertificate  
+* QTBUG-56595 QXcbConnection::getTimestamp() returns old timestamp  
+* QTBUG-86394 QNetworkInterface methods broken when targeting Android 11  
+(API-30)  
+* QTBUG-95639 MariaDB 10.6 prepared queries metadata cache causes  
+breakage in mysql driver  
+* QTBUG-95239 Massive memory consumption when rendering small svg  
+* QTBUG-95661 Test result counts are incorrect  
+* QTBUG-96399 Crash with SIGSEGV in QXcbConnection::getSelectionOwner  
+* QTBUG-95042 QFrame Qt::WA_TranslucentBackground is broken with  
+specific window flags and drawable child item  
+  
+### qtsvg  
+* QTBUG-95891 svg file freezes QImage  
+  
+### qtdeclarative  
+* QTBUG-69577 while using both qml and JavaScriptCore.framwork, iOS app  
+got a non-public api references error  
+  
+### qttranslations  
+* QTBUG-95014 pt_BR translations load incorrect catalogs  
+* QTBUG-95013 pt_BR translations not loaded  
+  
+### qtwayland  
+* QTBUG-94602 Releasing wayland buffer from Qt compositor side  
+* QTBUG-97094 Wayland modifiers map decoding has flawed logic  
+  
+### qtwebchannel  
+* QTBUG-74611 Flaky tests/auto/webchannel crashes on multiple platforms  
+in CI  
+  
+### qtwebengine  
+* QTBUG-71895 [REG 5.10->5.11] When calling clearHttpCache() it can  
+cause a crash when loading a url  
+  
+### qtvirtualkeyboard  
+* QTBUG-94259 High CPU load on embedded targets caused by timers  
+* QTBUG-85245 Candidate characters are mixed in uppercase and lowercase  
+when using Pinyin in Simplified Chinese  
+  
+Known Issues  
+------------  
+  
+Credits for the  release goes to:  
+---------------------------------  
+  
+Aavitsland Eirik  
+Achtelik Mike  
+Brüning Michael  
+Buddenhagen Oswald  
+D'Angelo Giuseppe  
+Dawes Rodney  
+Heikkinen Jani  
+Hermann Ulf  
+Holland Dominik  
+Jensen Allan Sandfeld  
+Koivikko Jarkko  
+Kosmale Fabian  
+Köhne Kai  
+Lemire Paul  
+Macieira Thiago  
+Mutz Marc  
+Okada Shinichi  
+Pocheptsov Timur  
+Qi Liang  
+Rutledge Shawn  
+Shaw Andy  
+Sørvig Morten Johan  
+Thibault Samuel  
+Trillmann Jens  
+Valdmann Jüri  
+Vestbø Tor Arne  
+Welbourne Edward