@ eric, please update qt5-base & qt-base-debug to 5.15.3. Otherwise, all qt applications don't work due to incompatible versions. Thanks.
$ pacman -Ss qt5-base
obextra/qt5-base 5.15.2+kde+r301-2 (qt qt5) [installed]
    A cross-platform application and UI framework
obextra/qt5-base-debug 5.15.2+kde+r296-3
    Detached debugging symbols for qt5-base
extra/qt5-base 5.15.3+kde+r132-1 (qt qt5) [installed: 5.15.2+kde+r301-2]
    A cross-platform application and UI framework

$ audacious
Cannot mix incompatible Qt library (5.15.3) with this library (5.15.2)
zsh: IOT instruction  audacious
thanks for the report, new version available on the repo.
eric wrotethanks for the report, new version available on the repo.
Works like a charm. Mark as "solved". Thanks.
2 months later
@ eric, pls update qt5-base again.
$ pacman -Ss qt5-base
obextra/qt5-base 5.15.3+kde+r137-1 (qt qt5) [installed: 5.15.3+kde+r137-3]
    A cross-platform application and UI framework
obextra/qt5-base-debug 5.15.2+kde+r296-3
    Detached debugging symbols for qt5-base
extra/qt5-base 5.15.4+kde+r135-1 (qt qt5) [installed: 5.15.3+kde+r137-3]
    A cross-platform application and UI framework
looks like a 'versionless' qt5-base : 
obextra/qt5-base +kde+r-1 (qt qt5) [installed: 5.15.4+kde+r135-2]
obextra/qt5-base-debug 5.15.2+kde+r296-3
    Detached debugging symbols for qt5-base
extra/qt5-base 5.15.4+kde+r144-1 (qt qt5) [installed: 5.15.4+kde+r135-2]
    A cross-platform application and UI framework
has been loaded into the repo..
4 months later
I think another update is needed, I'm getting "symbol lookup error: /usr/lib/libQt5WaylandClient.so.5: undefined symbol: _ZTI27QPlatformServiceColorPicker, version Qt_5_PRIVATE_API"
yup, `downgrade qt5-wayland` seems to be enough for me, at the moment..
should be ok
:D, 'twas perfect, ...until qt5-* got bumped to 5.15.6 .....D:

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