There is an upgrade to XFCE on Xubuntu, with reports indicating the version being upgraded to is either 4.18 or 4.20. Some outlets suggest Xubuntu 23.03 or later releases have Xfce 4.18, while others mention the release of Xfce 4.20 with new features. The exact version and release details of the XFCE upgrade on Xubuntu are unclear due to conflicting reports.