I am downloading and reviewing raw tick history for a number of futures assets... trades and quotes. At some point in 2016 (between May and October) there is a shift in data quality, where many more fields are provided for trades and quotes, with numerous qualifiers and specifics re trade times etc.
What was the specific date of the change?
Was this a Refinitiv or a CME initiative?
Was this the result of a consultation etc?
I'd like to see any documentation regarding the changes.