Several changes:

    - Handle iframe mouse-over events
    - Fix sizeHandle and fixedSize interaction in layout-manager
    - Delete resize-handles in grid-layout when needed
    - Unblocking all signals in child threads before exec (fixes #3222)
    - Handling FastCGI child process respawns outside of the signal handler
    (#3222)
    - Fixed ambiguous WLength overloads. Still allow for string literals.
    - Fixed include location for boost 1.56
    - Remove style-class info in widgetgallery example on button-click
    - Fixing up 3D chart examples, added subtitle class to blog
    - Fix WPaintDevice drawArc documentation
    - Fix case sensitivity issue in font matching (#3365)
    - Fixing the documentation of setPointSprite
    - PdfImage::drawArc cleanup (spanAngle here is already divided by 360)
    - Fix #3170 setDraggable and mouseWentUp are not compatible
    - Fix WCompositeWidget::setFirstFocus
    - Fix WPdfImage::drawArc correct radius and draw circle
    - Added run() shorthand (#2704)
    - Added WServer+setServerConfiguration shorthand constructor (#2702)
    - Going postal: added postAll (#3224)
    - Made the GL functions protected.
    - Do not restrict WSound to a single MP3 source
    - Removed some agentIsIE checks: point sprites work in IE 11 now
    - Removed hardcoded Float32Array
    - Changing the title font of chart axes had no effect
    - Chart3D: Fixed slightly transparent solid colored surfaces
    - Chart3D: fixed some allocation/deallocation code
    - Chart3D: antialiasing on/off switch support on webgl-experimental contexts.
    - Fixed a bug where the old session id was kept for file upload
    - added adjustSize() in WTableView
    - treeview-dragdrop example: restore numerical sorting