[Development] HEADS-UP: Branching from '5.9' -> '5.9.8' done

[Jani Heikkinen]

Hi everyone,

We have now branched '5.9.8' from '5.9'. So all changes for Qt 5.9.8 release must be done in '5.9.8' from now on. And from now on '5.9' is for Qt 5.9.9 release.

We will produce "rc" packages for testing as soon as possible and target is to release Qt 5.9.8 before Easter. So please make sure all release blockers are visible in Qt 5.9.8 release blocker list (https://bugreports.qt.io/issues/?filter=20723).

br,
Jani