Hi Analytics people,
Three new fields are available in the hive table wmf.webrequest (as per the documentation):
user_agent_map map<string,string> User-agent map with browser_name, browser_major, device, os_name, os_minor, os_major keys and associated values x_analytics_map map<string,string> X_analytics map view of the x_analytics field webrequest_source string Source cluster
You can access map values using this syntax: user_agent_map['browser_name'].
Documentation has been updated here: https://wikitech.wikimedia.org/wiki/Analytics/Data/Webrequest
Enjoy :)