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  1. Qt
  2. QTBUG-139649

ICU library mismatch between Ubuntu 24.04.3 and multiple Qt versions

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    • Icon: Bug Bug
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    • Icon: P4: Low P4: Low
    • None
    • 6.9.1
    • Packaging & Installer
    • None
    • Linux Ubuntu 24.04.3, gcc/g++ version 13.0, not running Wayland, Qt Creator version 17.0.1
    • Linux/X11

      Linux Ubuntu 24.04.3 ships with ICU libraries version 74.2 by default. This version of Ubuntu is "officially supported" by Qt 6.9.1 according to the documentation, but even that version and 6.9.2 seems to need ICU libraries at version 73. The other Qt versions starting with 6.7 are also built with version 73 of ICU.

      Older versions of Qt (6.6 and less) use ICU version 56, which is really old IMHO.

      Can you release a version of Qt which uses ICU 74, please? Right now I always get warnings of this kind, regardless of what version of Qt I try:

      :-1: warning: libicui18n.so.73, needed by /home/bob/Qt/6.9.1/gcc_64/lib/libQt6Core.so, may conflict with libicui18n.so.74

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            axelspoerl Axel Spoerl
            robert_hairgrove Bob Hairgrove
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