So this is finally happening. When I write finally it’s because I am sure this will lead to removing quite a lot of code in the Salesforce core application. With Summer 21 we are deprecating a bunch of API versions (see the release notes for more info) which means we will finally remove support for the API versions in Summer 22.
Below are the API versions that will be deprecated and ultimately removed:
SOAP AP: I7.0, 8.0, 9.0, 10.0, 11.0, 11.1, 12.0, 13.0, 14.0, 15.0, 16.0, 17.0, 18.0, 19.0, 20.0
REST API: 20.0
Bulk API: 16.0, 17.0, 18.0, 19.0, 20.0
Consider yourself notified… 🙂