Recent flash plugins didn’t work with newer Konqueror versions. But now the Fedora-KDE team released new KDE packages with support for the newest flash in Konqueror.
For quite some time now the newer flash plugins didn’t work with Konqueror: they required Xembed support which was not provided by Konqueror. As a result most Konqueror users sticked to the latest flash plugin that still supported the old-style Window passing. Some newer features were missing, but the rest worked.
However, recently several problems and vulnerabilities were found in the old flash plugin versions – some of them quite serious. As a result the flash plugin had to be updated or deactivated in Konqueror.
In the meantime the KDE project reacted and update the nspluginviewer library to support Xembed. The support is not perfect yet but works. And now the KDE-Fedora team took that code and patched the current kdebase and kdelibs: Konqueror can now use the newest flash plugins.
The updates are still in testing and therefore must be installed via
yum --enablerepo=updates-testing update kdebase kdelibs
But: keep in mind that this is still non-perfect code! There are reports that 86_64 could run into trouble of some kind. But you can help improving the packages by simply testing them and report all problems in the corresponding bug report.