On 27/01/2020 17:25, Simon Hausmann wrote:
The development model where changes go to dev first was indeed a topic
of discussion at the Qt Contributor Summit.

This also means that all security fixes will see the light of day on the
dev branch first, in public, in Gerrit.

Some other remark (and please substitute 5.15 / 6 with "latest LTS" and "dev" at your discretion; of course 5.15 is going to be a particular pain point being the last in the 5 series, so I expect people to be using it for a very long time).

1) This means there will be exactly zero incentive from 3rd parties at fixing bugs only present in Qt 5(.15) and not in Qt 6; or, similarly, to put effort in producing a cherry pick from Qt 6.x to 5.15 (but Lars said that TQC will be in charge of this), *especially* if they're not using Qt 6 yet.

2) It also means that someone pushing a bugfix against 5.15 for a bug that also affects 6.x will see that patch rejected (-2) as it would be in violation of the Qt policy. Again it won't matter if they're not using Qt 6 and can't care about it.

3) Speaking of which, is the plan to effectively fork 5.15 when it switches to commercial-only, and have a private TQC 5.15 branch, where TQC will do the cherry-picking and release from? Will the public branch / releases be closed? In other words: what are the practicalities for all of this?

4) What's the policy for very important bugfixes targeting 5.15 after it has switched to commercial only? Will a new open source release be made? Will an official patch be provided? Where? By whom?

Thanks,

--
Giuseppe D'Angelo | giuseppe.dang...@kdab.com | Senior Software Engineer
KDAB (France) S.A.S., a KDAB Group company
Tel. France +33 (0)4 90 84 08 53, http://www.kdab.com
KDAB - The Qt, C++ and OpenGL Experts

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