Correct, linking selections between the viewport and the outliner, as well as other features for the outliner are currently in development.
The link you have provided is for the active discussion and development of the GSoC: 2019 Outliner.
Correct, linking selections between the viewport and the outliner, as well as other features for the outliner are currently in development.
The link you have provided is for the active discussion and development of the GSoC: 2019 Outliner.