Qt 5.14.1 in 2025

[QNewbie]

Hello Everyone, due to migration needs I'm required to keep a dual stack of both new and old Qt versions, but the installer goes back as far as 5.15.1.

Is there any way to fetch the required version? or should I fetch it from an active host and just copy plus define the kit in qt creator?

Kind regards,

[d_stranz]

I think the Qt site has source code archives that go back a long way. If the installers have been taken down, then you may be forced to download source and build binaries from that.

You could also look at revision logs from 5.14.1 to 5.15.1 to see if any of the changes are relevant to your use of Qt. If there aren't many, then you may be able to convince your management to move to 5.15.1 even though long term support for that is ending on May 26, 2025. The Qt company also has an extended security contract for 5.15.1 that they will sell you.

[QNewbie]

Hey @d_stranz, sorry for the late reply.
Yes, indeed, I managed to get the file from the archive and got it installed alongside the other one, which also proved to get some drama involved.
But none the less, I'm currently working on the migration -not to 5.15.1 but aiming a little more towards 6-.

Thanks for the feedback!

[d_stranz]

Be aware of the change in license terms for Qt6, which are more restrictive and which require payment of annual fees for commercial licenses for the entire duration of your product's lifetime. One reason why I will stay with Qt5 forever.