The new endpoint that returns "suggested" titles is up and running:

https://en.wikipedia.org/api/rest_v1/page/related/Obama

This can replace our current API query that we use for "Read more" items at the bottom of articles, as well as "Because you read" items in the Feed.

The above endpoint currently returns up to 5 items, but T199458 will increase the limit to 20.

API document: https://en.wikipedia.org/api/rest_v1/#!/Page_content/getRelatedPages

QA steps

A. in article page

1. Open the article: United_States
2. Go to the bottom section Read more of the article, and make sure the related articles are shown. (e.g. California)

B. in Explore feed

1. Open the article: United_States
2. Stay in the article at least 1 minute.
3. Back to the Explore feed page to find the Because you read card that relates to United_States
4. Check the lists in the card has related articles. (e.g. California, Los Angeles)

C. in different languages

1. Repeat the A and B steps in different languages.