Update the bigquery views/tables with an upgrade type column for minor/micro/none, this can be inferred based on FromRelease="" (none), or FromRelease==Release (micro), FromRelease!=Release (minor). This will give us a consistent way to join the correct rows across releases instead of having to map 4.13->4.14 to 4.12->4.13 data.

With this add a dashboard that queries 4.12 GA data, joins it with last week of 4.14 data, calculate the deltas and sort by the worst.

Perhaps add another for current week vs previous week for the selected release, and/or last week of 4.13 vs last week of 4.14.

This might make sense as a new dashboard entirely.

Bonus points if the tables could link directly to the disruption dashboard with prepopulated filters.