Exactly. Any changes made to the Qt libraries themselves need to be shared, allowing users (and potentially The Qt Company) to benefit. It's up to you whether t

Exactly. Any changes made to the Qt libraries themselves need to be shared, allowing users (and potentially The Qt Company) to benefit. It's up to you whether to share the source for any of your code which then links (statically or dynamically) with those libraries. This is exactly what Nokia wanted when they made Qt available under the LGPL in 2009; they fully endorsed this kind of usage. All subsequent buyers and investors have been fully aware of what the LGPL means. Just remember that some ancillary Qt software - such as Qt Virtual Keyboard - are only available under the GPLv3 and commercial licenses.