RHEL 8.5 updated qt5 from 5.12 to 5.15.  This allowed us to update the KDE Plasma Desktop in epel 8 to the latest version, per the update schedule[1].

That update is complete, tested and pushed to epel stable.

** New Versions

qt5 - 5.15 (5.15.2 mainly)

plasma - 5.23.3

kf5 - 5.88

** Known Bugs

- When running in Wayland (not X11), the start menu and notifications pop up in the middle of the screen instead of the side.

** Next Update

- Per the update schedule[1], the KDE Plasma Desktop will remain stable in EPEL for a year.    That goes for both epel8 and the upcoming epel9.  Except for bugfixes, we do not expect any updates until RHEL 8.5 and RHEL 9.1.

** Packages that were not updated

These packages still work, they just aren't at the latest versions.

- kpmcore and kde-partitionmanager

-- Newer versions of kpmcore need a newer util-linux (2.33.2) (RHEL8 has 2.32.1)

-- Newer versions of kde-partitionmanager need a newer kpmcore

- digikam

-- Newer versions of digikam need opencv with the DNN libraries. They are not compiled on the RHEL 8 version of opencv.

-- https://bugzilla.redhat.com/show_bug.cgi?id=2007780

- ktorrent and kf5-libktorrent

-- Newer versions of ktorrent and kf5-libktorrent need boost 1.71.0 or higher.  RHEL 8 has 1.66.0

Troy

[1] - https://fedoraproject.org/wiki/SIGs/KDE/EPEL#Update_Schedule