AIRBUS amended its standard operation procedures(SOP), checklist, and briefing method in November 2021
and advised airlines to implement these changes by early 2022.
The company scrapped their down to the line/ below the line system, before takeoff, and after takeoff checklist,
then created a taxi and lineup checklist as well as a few other modifications.
This 10-page PDF file is the latest checklist for the A320 including new flow patterns.