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This is the biggest single update for some time, introducing the new modelling view, tooltip styling, single-select slicers and much more besides.
- The March 2019 Update to Power BI Desktop
- A new modelling view to change your Power BI life!
- Changing the appearance of tooltips
- Single-select slicers (this blog)
- Viewing date components in the field list
- Automatic heat maps and improvements to map formatting
- Improved selection pane
- New DAX functions
- Lots of other miscellaneous changes
- Power BI features waiting in preview, as of March 2019
For a cumulative list of all of the updates to Power BI Desktop in the last few year or two, see this blog, or have a look at the Power BI courses that we run.
Posted by Andy Brown on 20 March 2019
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Single-select slicers
This is only a small change, but it's one which is long overdue. For those who know their Power BI, the following diagram will tell you all you need to know:

No longer do you need to use custom visuals or complicated DAX formulae to prevent people choosing more than one value for a slicer - now you can just turn the Single select property on.
And for those who don't know Power BI so well, here's the effect of setting the property above:

The slicer looks different, and you can't select more than one genre at a time.
The only thing to wonder about this change is why it took so long for it to be introduced!
- The March 2019 Update to Power BI Desktop
- A new modelling view to change your Power BI life!
- Changing the appearance of tooltips
- Single-select slicers (this blog)
- Viewing date components in the field list
- Automatic heat maps and improvements to map formatting
- Improved selection pane
- New DAX functions
- Lots of other miscellaneous changes
- Power BI features waiting in preview, as of March 2019