Following needs to happen:
- Write and merge JS for logging info to https://meta.wikimedia.org/wiki/Schema:MobileBehaviouralDifferences this into the WikimediaEvents extension
- Estimate total volume of events, notify analytics team
- Deploy patch turning it on for specific period of time
- Deploy patch turning it off
- Sanitize and release aggregated data
See https://meta.wikimedia.org/wiki/Research:Mobile_User_Behavioural_Differences for more information.