Power BI Weekly

Issue #326 - 23rd September 2025

After all the announcements at FabCon last week, we've had a bunch of "deep dive" blogs arrive from the Power BI team. I'll start with the miscellaneous ones - which are: TMDL view is now Generally Available, Deep Dive into Editing Semantic Models in the Power BI Service (also Generally Available) and Power BI in Teams – Content Shared in Teams Chats Now Opens a Dedicated Separate Window Within Teams. But now for the specifics. As discussed last week, DAX UDFs are now available. Read into it in the official blog DAX UDFs: Code once, reuse everywhere (Preview) or, alternatively, the SQLBI blog: Introducing user-defined functions in DAX. As you can imagine, various people have started playing around with them and creating useful functions already. For example, Davide Bacci has used them to create Easy UDF Chips, and Dane Belarmino has shown how to create a DAX UDF + HTML + SVG Custom Bar Chart. And you can find plenty more functions in the handy new DAXLIB project created by the SQLBI team. The other main announcement I mentioned last week was the new Calendar-based time intelligence: time intelligence, tailored (Preview) (Microsoft blog), which has also been elaborated by the SQLBI team: Introducing calendar-based time intelligence in DAX. Lots to sink your teeth into if you do a lot of data modeling!