-LyX has been tested with all Qt versions since Qt 4.2.2. For compilation
-you need to compile against at least Qt 4.2.2. The only special point to
-make is that you must ensure that both LyX and the Qt libraries are
-compiled with the same C++ compiler.
+For full LyX usability we suggest to use at least Qt 4.6 which has been
+widely tested. For compilation you need to compile against at least
+Qt 4.2.2. The only special point to make is that you must ensure that both
+LyX and the Qt libraries are compiled with the same C++ compiler.