Animated transitions enable consumers of data visualisations to more easily understand changes between states such as when filtering, sorting or changing levels of granularity.
The second beta of 2019.2 includes an upgrade to Parameter Actions, which now allow you to select multiple values and pass an aggregation of those values to a parameter. This blog explains this new feature and walks through an example.
The Tableau 2019.2 beta introduces Show/Hide Container functionality, which, combined with the new Parameter Actions as well as Set Actions, allows for popup customisable charts.
This blog uses the new Show / Hide Container feature in the Tableau 2019.2 beta to create a help overlay that displays instructions on how to use a dashboard that can be shown or hidden as needed.