Amazon announced this year that the Product Advertising API (PAAPI) v4 will be replaced by v5.
The shutdown date for v4 was 31st October 2019, but that date has been and gone, and v4 is still live.
There wasn't much communication from Amazon about v5 or v4.
Our only clue is a grainy photograph from an Amazon event in Germany which says the API v4 will now be shut down in January 2020.
We wait for an official announcement.
To find out more about PAAPI v5, which is a LOT better to work with but is missing some features, check out the documentation here: