poldek:/all-avail> install VirtualBox52-gui-5.2.26-1.x86_64
[...]
error: VirtualBox = 5.2.22-1 is required by installed VirtualBox-gui-5.2.22-1.x86_64
greedy upgrade VirtualBox-additions-5.2.22-1.noarch to VirtualBox52-additions-5.2.26-1.noarch (unresolved VirtualBox = 5.2.22)
VirtualBox-additions-5.2.22-1.noarch obsoleted by VirtualBox52-additions-5.2.26-1.noarch
Suggests: Qt5Gui-platform-xcb-glx >= %{qtver}
Suggests: Qt5Gui-platform-xcb-egl >= %{qtver}
Suggests: gxmessage
-Obsoletes: %{pname} < 6.0.0
-Conflicts: %{pname} >= 6.0.0
+Obsoletes: %{pname}-gui < 6.0.0
+Conflicts: %{pname}-gui >= 6.0.0
%description gui