As my recent tests of the PLplot qt device driver have demonstrated the Qt5 near-vanilla version that Debian Jessie gives access to really sucks compared to their Qt4 version.
To attempt to understand why, I looked up the Qt history at <https://en.wikipedia.org/wiki/Qt_(software)> and discovered that Qt4 was released in 2005 while the original company that was completely focussed on Qt and nothing else, Trolltech, was still in charge of Qt support and development. In contrast Qt5 was released in late 2012 long after Trolltech had disappeared thanks to Nokia's acquisition of them and subsequent aquisitions/mergers.) So my speculation is the poor quality of Qt5 is a reflection of its commercial support being essentially a commercial football. (Otherwise, 4 years of feedback from Qt5 users should have created a much better quality product with essentially no memory management issues at all.) Of course, recently (May this year) Qt development and support is again the sole focus of a single independent company (now called "The Qt Company", see <https://en.wikipedia.org/wiki/The_Qt_Company>), and my hope is that improved focus should help to quickly and drastically improve Qt5 based on customer bug reports so that it is finally comparable in quality to Qt4. But we will see how this goes... Alan __________________________ Alan W. Irwin Astronomical research affiliation with Department of Physics and Astronomy, University of Victoria (astrowww.phys.uvic.ca). Programming affiliations with the FreeEOS equation-of-state implementation for stellar interiors (freeeos.sf.net); the Time Ephemerides project (timeephem.sf.net); PLplot scientific plotting software package (plplot.sf.net); the libLASi project (unifont.org/lasi); the Loads of Linux Links project (loll.sf.net); and the Linux Brochure Project (lbproject.sf.net). __________________________ Linux-powered Science __________________________ ------------------------------------------------------------------------------ _______________________________________________ Plplot-devel mailing list Plplot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/plplot-devel
