More generally, if you haven't been following API deprecation notices then you should subscribe to the mediawiki-api-announce list[1] and look through its archives[2] for the past year or so. There aren't many.

 [1]: https://lists.wikimedia.org/mailman/listinfo/mediawiki-api-announce
 [2]: https://lists.wikimedia.org/pipermail/mediawiki-api-announce/