Microsoft is very excited to announce Power BI September updates. It includes a preview of aggregations, which allows you to seamlessly store only summarized values in memory without having to load your entire dataset into Power BI, greatly improving the performance of your reports.
This month also includes a preview of a PDF file connector, which is the most requested connector on UserVoice; and one of our biggest updates to our advanced query editor in quite a while, M intellisense.
The complete list covers reporting, analytics, custom visuals, data connectivity and data preparation functionality.
Full report text is available at Microsoft Power BI blog.