The branch naming has changed to try to accommodate for the stopping of the "KDE Applications" brand, it's now called
Make sure you commit anything you want to end up in the 19.12 releases to them
We're already past the dependency freeze.
The Freeze and Beta is this Thursday 14 of November.
More interesting dates
November 28, 2019: KDE Applications 19.12 RC (19.11.90) Tagging and Release
December 5, 2019: KDE Applications 19.12 Tagging
December 12, 2019: KDE Applications 19.12 Release
P.S: Yes, this release unfortunately falls in the middle of the debranding of "KDE Applications" and there's still a few things called "KDE Applications" here and there
[*] There's a small issue with kwave we're working on figuring it out