The deprecation and accompanying warning was in November but Google publicly stated their intention to deprecate in November and remove at the end of February a

The deprecation and accompanying warning was in November but Google publicly stated their intention to deprecate in November and remove at the end of February at least as far back as June. Edit: The intent to deprecate and remove was sent to the blink-dev mailing list on June 11th. It can be found on row 2731 of the Blink Intents spreadsheet, https://bit.ly/blinkintents https://bit.ly/blinkintents.