how can I use open source version after my licences are expired
-
I have had some QT licenses while i was working professioally. Now I'm a pensioner and im programming pivately only and like to maitain all my old Tools on new compiler and Qt open source version. But the maintenance tool does not offer any qt version to install!
-
I have had some QT licenses while i was working professioally. Now I'm a pensioner and im programming pivately only and like to maitain all my old Tools on new compiler and Qt open source version. But the maintenance tool does not offer any qt version to install!
How old is your Maintenance Tool? Could be outdated.
like to maitain all my old Tools on new compiler and Qt open source version
Note: You are not allowed to mix code which was developed under a Qt commercial license with open source code using (L)GPL.
So I don't know what you mean by "old tools". Are these projects developed with a commercial license? -
My guess would be one among these :
- contact Qt and ask them to convert your commercial account to free / open source
- or withdraw your commercial account and create a new free / open source instead
- and if necessary uninstall your Qt Maintenance tool and reinstall the free one (i'm not certain they are the same)
-
What I mean with 'old toos' are prorgrams in wrote only for my private use and never sold or made public, for example on to calculate the needed length for my planned wheelchair ramp, create and audiogram or check the transfer speed of my disks. Some of them i wrote while a valid license for my job was active so I used the same Qt library. This was long before Maintenance Tool, using Qt4. I just installed some Qt5 and Qt6 open source version about one or two years ago using my old (25 years?) account on my new machine (age of 2022). Maybe it was an update of maintenance tool or some cleaning action, but I cannot install any Qt version exept the source packages from the archive. And I'm not willing to compile the whole Qt library any more. I can't fid a version number of the maintenance tool, but it is quite a new one.
-
I had the same problem when no longer using a commercial license. I'm pretty certain you are allowed to use code which was developed under a Qt Commercial License with a (L)GPL license since this is not disallowed by the (L)GPL license and the commercial license doesn't apply anymore. Using code written under (L)GPL license with a commercial license is indeed not allowed.
I guess the solution is indeed to contact Qt like mentioned by ankou29666. Do keep us updated.
