Add changes-5.6.3

Mention the merge from 5.7.1 and list the fixes thereby gained.

Change-Id: I8000a3bddfaed612e91ed2e92445e255b2262bde
Reviewed-by: Leena Miettinen <[email protected]>

Author: Allan Sandfeld Jensen

dist/changes-5.6.3

@@ -0,0 +1,58 @@
+Qt 5.6.3 is a bug-fix release. It maintains both forward and backward
+compatibility (source and binary) with Qt 5.6.0.
+
+Qt 5.6.3 contains a merge from Qt 5.7.1 and all bug-fixes in Qt 5.7.1 are
+also in Qt 5.6.3. These are listed both here and in changes-5.7.1.
+
+Qt 5.6 introduces many new features and improvements as well as bugfixes
+over the 5.5.x series. For more details, refer to the online documentation
+included in this distribution. The documentation is also available online:
+
+  http://doc.qt.io/qt-5/index.html
+
+The Qt version 5.6 series is binary compatible with the 5.5.x series.
+Applications compiled for 5.5 will continue to run with 5.6.
+
+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.
+
+****************************************************************************
+*                             General                                      *
+****************************************************************************
+
+ - Chromium Snapshot:
+   * Updated the Chromium version to 49.0.2623.111.
+   * Backported security fixes from Chromium up to version 54.0.2840.87.
+    Including: CVE-2016-5133, CVE-2016-5147, CVE-2016-5153, CVE-2016-5155,
+      CVE-2016-5161, CVE-2016-5166, CVE-2016-5170, CVE-2016-5171,
+      CVE-2016-5172, CVE-2016-5181, CVE-2016-5185, CVE-2016-5186,
+      CVE-2016-5187, CVE-2016-5188, CVE-2016-5192, CVE-2016-5198.
+   * Added support for macOS 10.12 Sierra.
+   * Backported various crash and assertion fixes.
+
+ - QtWebEngineCore:
+   * [QTBUG-51244, QTBUG-54795] Fixed select control issues.
+   * Fixed several focus issues.
+   * Fixed regression with fine-grained wheel events.
+   * [QTBUG-54221] Fixed editing short-cuts in plugins.
+   * [QTBUG-54222] Fixed potential infinite loop on history load.
+   * Fixed Flash plugin clipboard access.
+
+****************************************************************************
+*                      Platform Specific Changes                           *
+****************************************************************************
+
+ - Linux:
+   * [QTBUG-55367] Fixed reading timezone when running sandboxed.
+   * Fixed crash when using Wayland QPA.
+   * Improved OpenGL check, so EGL/GLES2 mode can be used with Desktop
+     OpenGL if the driver has the ARB_ES2_compatibility extension.
+
+ - Windows:
+   * [QTBUG-52201, QTBUG-55501, QTBUG-56020] Fixed crashes and asserts
+     upon initialization of the global shared OpenGL context.