From Microsoft PowerBI blog: https://powerbi.microsoft.com/es-es/blog/power-bi-report-server-update-january-2019/
Today we are happy to announce our January update of Power BI Report Server! This release has many highly anticipated features such as copy and pasting between pbix files, expand & collapse on matrix row header, and row-level security support.
Read on to learn more about these and many other new capabilities we’ve added in this release.
Report Server
Row-level security
Reporting
Dot plot layout support in scatter charts
Copy value and selection from table & matrix
Built-in report theme options
Search in filter cards
Expand & collapse matrix row headers
Copy & paste between Desktop files
Smart guides for aligning objects on a page
Set tab order for objects on a page
Tooltips for button visuals
Report accessibility improvements
Modeling
DAX editor improvements
Modeling accessibility improvements
New DAX functions
Optional DrilldownFilter argument for the RollupAddIsSubtotal function
NonVisual function
IsInScope function
Analytics
Color saturation on visuals upgraded to use conditional formatting
Other
Updated Power BI Desktop for Report Server icon
Transport layer security settings
High contrast support for all panes and report footer
Improved keyboard shortcuts dialog
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Some opinions expressed in this article may be those of a guest author and not necessarily Analytikus. Staff authors are listed in https://powerbi.microsoft.com/es-es/blog/power-bi-report-server-update-january-2019/