1 Qt 4.2.1 is a bug-fix release. It maintains both forward and backward

     2 compatibility (source and binary) with Qt 4.2.0.

     3 

     4 The Qt version 4.2 series is binary compatible with the 4.1.x and 4.0.x series.

     5 Applications compiled for 4.0 or 4.1 will continue to run with 4.2.

     6 

     7 ****************************************************************************

     8 *                           General                                        *

     9 ****************************************************************************

    10 

    11 - QImage

    12         Fixed a potential security issue which could arise when transforming

    13         images from untrusted sources.

    14