- As of January 4, 2023, all downloads and impressions associated with the "ATC" user agent will be filtered out from all certified IAB metrics.
- These changes were made in keeping with our high standard of measurement, which includes filtering out as much non-user initiated traffic as possible.
- The IAB v2.1 measurement guidelines give specific guidance in regards to filtering out auto-downloads from Apple Podcasts on the Apple Watch. In 2022, Apple made changes to certain versions of the Apple WatchOS and the associated user agent "ATC" that allowed these downloads to fall outside of the guidelines.
- This change does not impact historical data.