[Releasing] [Development] Change file process & improvement proposal

[Kai Koehne]

> -----Original Message-----
> > [...]
> > I therefore suggest to implement Jani's suggestions for the time
> > being. If we find out they're not effective, we can always come back
> > and look into alternative processes.
> >
> > 1. Enable [ChangeLog] tag in commit template
> >
> > https://codereview.qt-project.org/183244
> >
> > 2. Add check in sanity bot to check for missing ChangeLog entries
> > (potentially only in 5.x branches after 5.x.0 is out)
> 
> Why only there? All relevant changes should have it - regardless of branch.
> 
> I would actually suggest we change the sanity bot to -1 any change that has
> no [ChangeLog] entry. And we then agree on a marker that says "no
> changelog needed".
> 
> [ChangeLog] none
> 
> or similar.

This will add quite some noise - There'll always be a significant portion of the commits, if not the majority, which do not require a ChangeLog. 

But yeah, it's easy to check and enforce :) I could live with this, too.

Kai