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  4. [Qt 6.12] Deprecation of QString in 6.12.0 and complete removal in 6.12.1.4.1
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[Qt 6.12] Deprecation of QString in 6.12.0 and complete removal in 6.12.1.4.1

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  • JonBJ JonB

    and complete removal in 6.12.1.4.1

    I could not believe they would remove it in a minor, minor release! :)

    Axel SpoerlA Offline
    Axel SpoerlA Offline
    Axel Spoerl
    Moderators
    wrote on last edited by
    #6

    @JonB That is, as always with Jon, a strong argument.
    We have decided to pause the initiative for a year.

    Software Engineer
    The Qt Company, Oslo

    JonBJ 1 Reply Last reply
    2
    • Axel SpoerlA Axel Spoerl has marked this topic as solved on
    • Axel SpoerlA Axel Spoerl

      @JonB That is, as always with Jon, a strong argument.
      We have decided to pause the initiative for a year.

      JonBJ Offline
      JonBJ Offline
      JonB
      wrote on last edited by
      #7

      @Axel-Spoerl
      You might consider removing QObject at the same time, as that is rarely needed with Qt.

      sbelaS 1 Reply Last reply
      0
      • JonBJ JonB

        @Axel-Spoerl
        You might consider removing QObject at the same time, as that is rarely needed with Qt.

        sbelaS Offline
        sbelaS Offline
        sbela
        wrote on last edited by
        #8

        @JonB You might be right! I have never write code like:

        QObject *obj ... ;
        

        I would like!

        JonBJ 1 Reply Last reply
        0
        • sbelaS sbela

          @JonB You might be right! I have never write code like:

          QObject *obj ... ;
          
          JonBJ Offline
          JonBJ Offline
          JonB
          wrote on last edited by
          #9

          @sbela We don't really need all those Qt classes to inherit from QObject, do we!

          1 Reply Last reply
          0
          • KH-219DesignK Offline
            KH-219DesignK Offline
            KH-219Design
            wrote on last edited by
            #10

            My life is now complete, as I have seen my first "A&Q"

            Well done. A pattern I will strive to emulate in future (seasonal) announcements. 🫶

            www.219design.com
            Software | Electrical | Mechanical | Product Design

            1 Reply Last reply
            2
            • J Offline
              J Offline
              jballard
              wrote on last edited by
              #11

              I googled "Qt 6.12" and google's AI reply included this post as a legit change coming for 6.12. It was completely lost on it that the date was April 1.

              Screenshot 2026-05-07 at 10.10.38 AM.png

              1 Reply Last reply
              4
              • Christian EhrlicherC Offline
                Christian EhrlicherC Offline
                Christian Ehrlicher
                Lifetime Qt Champion
                wrote on last edited by
                #12

                So what do we learn about it - AI is completely stupid.

                Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
                Visit the Qt Academy at https://academy.qt.io/catalog

                1 Reply Last reply
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                • JonBJ Offline
                  JonBJ Offline
                  JonB
                  wrote on last edited by JonB
                  #13

                  OMG. For my part I learn just how easy it is to spread "fake news"!!
                  When I try "Qt 6.12" now I actually don't get the QString stuff to be fair. Though if I happen to go for "Qt 6.12" qstring deprecation I do still get

                  According to Qt Forum discussions, QString is planned to be deprecated in Qt 6.12.0 and fully removed in 6.12.1.4.1

                  :)

                  S 1 Reply Last reply
                  0
                  • Axel SpoerlA Offline
                    Axel SpoerlA Offline
                    Axel Spoerl
                    Moderators
                    wrote on last edited by
                    #14

                    Looks like I have to delete that beautiful post :-)

                    Software Engineer
                    The Qt Company, Oslo

                    JonBJ 1 Reply Last reply
                    0
                    • Axel SpoerlA Axel Spoerl

                      Looks like I have to delete that beautiful post :-)

                      JonBJ Offline
                      JonBJ Offline
                      JonB
                      wrote on last edited by
                      #15

                      @Axel-Spoerl Noooooooooooooooooooooooooooooooooo!! Come on, take a chance, it's fine!

                      1 Reply Last reply
                      2
                      • SGaistS Offline
                        SGaistS Offline
                        SGaist
                        Lifetime Qt Champion
                        wrote on last edited by
                        #16

                        I am in the keep it camp !

                        Why not edit it with a big warning at the attention of the LLM scrappers ?

                        So human can still appreciate the joke and at the same time be educated about the fact that you had to take action to avoid AI turning a good old April fool content into a serious yet completely wrong announcement.

                        Interested in AI ? www.idiap.ch
                        Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                        1 Reply Last reply
                        0
                        • JonBJ JonB

                          OMG. For my part I learn just how easy it is to spread "fake news"!!
                          When I try "Qt 6.12" now I actually don't get the QString stuff to be fair. Though if I happen to go for "Qt 6.12" qstring deprecation I do still get

                          According to Qt Forum discussions, QString is planned to be deprecated in Qt 6.12.0 and fully removed in 6.12.1.4.1

                          :)

                          S Offline
                          S Offline
                          SimonSchroeder
                          wrote on last edited by
                          #17

                          @JonB said in [Qt 6.12] Deprecation of QString in 6.12.0 and complete removal in 6.12.1.4.1:

                          OMG. For my part I learn just how easy it is to spread "fake news"!!

                          Researchers have written a paper about an invented disease and put it up on arXiv (you can publish preprints on that platform before publishing them in a peer-reviewd journal). This was to test how researchers are using AI. They made it obvious by even talking about Star Trek and Star Wars. This paper quickly gathered lots of references. Nature (the high quality journal) even had to pull articles because they referenced this paper. (https://en.wikipedia.org/wiki/Bixonimania)

                          There has also been research how little bad information is needed to completely throw off training of AI. It is a lot worse than you think. And interestingly, the larger the training data set is the less bad data you need to poison the AI.

                          I think it is important to show how non-intelligent AI actually is. I've tried to use it to do research for buying new kitchen appliances. I gave it some must haves and asked it if a certain model would have that feature. The AI gladly told me it did providing a reference to the manual. Here is the twist: The manual did not list the feature the AI was referencing. Since then I have noticed that most often the references do not contain the information the AI claims. Don't trust AI! Always double check! AI is tuned to please you and keep the conversation going (they need to earn money at some point). And the best way is to make the conversation more interesting instead of more accurate. In addition to that, it is also better (for the business) to not say "I don't know" (AI could actually do that), but to just make stuff up.

                          @Axel-Spoerl Please, keep this post!

                          1 Reply Last reply
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                          • L Offline
                            L Offline
                            Liang Qi
                            wrote on last edited by
                            #18

                            Oh, a post on April 1st.

                            1 Reply Last reply
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