We plan on landing a number of changes to the Attribution Reporting API focused on: - registration ergonomics - support for developer controlled configurations that allow for callers to specify precisely the information they want out of reports, in order to more efficiently extract utility out of the privacy mechanism Spec changes - Allow expiry, event_report_window, aggregatable_report_window fields to be integers - Lookback window in filters - Developer defined configurations for reporting windows and maximum # of reports - Separate verbose debug report for start time - Reduce min event report window time from 1 day to 1 hour and prohibit negative durations