This article provides the version numbers for any APIs that include a 'version':

Reviews API

Version    Release DateDetails
20
21/09/2021Supports authenticated requests using bearer tokens generated via OAuth2.0 Token API.
10
28/09/2016
Initial release.
Supports authenticated requests using deprecated Authenticate API.


Product Ratings API

Version    Release DateDetails
2021/09/2021This version supports all of the documented parameters.
11 (current)16/06/2017This version supports all of the documented parameters.
1028/09/2016Initial release.