Now live for all devices:
https://www.amazon.com/gp/help/custo...deId=200529680
WARNING: For Paperwhite 2, Active Content is half broken, many apps reporting an error upon start. Update 5.10.2.1 available only for PW2 is a bugfix for this issue:
https://s3.amazonaws.com/firmwaredow...2_5.10.2.1.bin