Andreas Sturmlechner <
asturm@gentoo.org> writes:
Title: KDE Plasma 6.1.4 and Gear 24.05.2 Upgrade
Author: Andreas Sturmlechner <asturm@gentoo.org>
Posted: 2024-08-31
Revision: 1
News-Item-Format: 2.0
Display-If-Installed: kde-plasma/plasma-workspace:5
Reasons
=======
KDE Plasma 5 has reached end of life and is no longer supported by Gentoo. Qt5 upstream OSS support ended on 2020-12-08, and LTS releases - even with considerable effort by KDE community's backports on top - only go so far.
It is therefore required for all users to upgrade to KDE Plasma 6[1].
At the same time, KDE Gear 24.05.2 is provided with most applications ported over to KDE Frameworks 6. As long as KF5-based applications are being shipped with the KDE Gear bundle, and other non-KDE Qt5-based applications still common in ::gentoo repository, it is advised *not* to disable USE="qt5".
Changes
=======
Not many - much like Qt6, this is mostly an evolution of the existing codebase, no disruptive feat.
Plasma Wayland support has come a long way and therefore KDE developers have decided to make it the default login session for Plasma 6, even if some
known papercuts[2] remain. For users affected too much by those, switching
to the still existing X11 session is as easy as selecting it in the display manager of choice. Disabling USE="wayland" is *not* changing this default,
it will yield no dependency savings, and we advise against doing so. It does not affect users' X11 sessions.
In Gentoo:
The 32-bit ~arm/arm keyword was inconsistent across KDE Plasma, KDE Frameworks, and KDE Gear, and has been dropped.
The situation for x86 was similar to arm and test failures often blocked stabilization. Stable x86 has been dropped, ~x86 was dropped for KDE PIM, dev-util/kdevelop and any other dev-qt/qtwebengine:6 reverse dependencies.
User Action Required
====================
For users of a plasma profile[3], no specific upgrade steps are necessary, although some precautionary measures are advised before and during upgrade:
- Switch to a standard (Breeze or Oxygen) theme
- Depclean kde-misc/latte-dock, it is unfit for Plasma 6 (and masked already) - Cleanup sets and @world from any SLOT or version pinning of KDE packages
- If possible, perform the upgrade not inside a running Plasma session
Necessary USE flag changes were already made in plasma profile, therefore only users of other profiles should set USE="kf6compat qt6" globally[4].
"Users are recommended to run the following command (pretend-only) to identify packages
in @world which have been removed, to help reduce conflicts:
emerge -pev @world -backtrack=0
Then for any "no ebuild available" messages, either resolve it by making
the needed changes, or emerge --deselect them. Then proceed to the world upgrade below.
Once the packages become available on your arch, it should be as simple as update @world:
emerge -aquUD @world
[1] https://kde.org/plasma-desktop/
[2] https://community.kde.org/Plasma/Wayland_Known_Significant_Issues
[3] https://wiki.gentoo.org/wiki/KDE#Profile
[4] https://wiki.gentoo.org/wiki//etc/portage/package.use
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