Qt

Back from Qt Dev Days (Munich)

Before 2009, I’d never set foot in Germany before; not for any particular reason, I just hadn’t gotten around to it yet. However, thanks to gracious invitations to conferences I’ve now been twice. 😀In May I went to Stuttgart for FMX, and last week I went to Munich for Qt Developer Days. It was an enjoyable conference, as always the best part is just meeting other delegates, the sessions themselves are merely the icing on the cake.

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Qt / Nokia ramping up open source involvement

community Open Source qt

I reported a few months ago on how pleased I was that Qt was changing license to the LGPL, something I saw as a watershed for Qt adoption. I already had an awful lot of respect for Qt, but the previous GPL/commercial license did mean that adoption was in two quite widely separated camps - those who were already making GPL software, and those that could afford to license it for other cases.

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Qt 4.5 will be available under the LGPL

I’m on the Qt (owned by Nokia now) mailing list since I have a commercial license for a client project, and I got a very interesting email today, telling me that on its release in March 2009, Qt 4.5 will be available under the LGPL. This is really big news. Up until the current Qt 4.4, your only licensing options are a per-seat and per-platform commercial license (which adds up if you have multiple developers and multiple target platforms, which you will do if you’re using Qt anyway), or alternatively the free option which means you use it under the GPL - meaning all your own code has to also be GPL, with an exception that allows you to publish / use software under other open source licenses too, but nevertheless it all has to be public.

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