> AGPL meant companies who wanted to modify and run MongoDB as a publicly available service had to open source their software or obtain a commercial license from MongoDB

With the new license:

> The only substantive change is an explicit condition that any organization attempting to exploit MongoDB as a service must open source the software that it uses to offer such service

Aaaaaaaaaaaand from the license text itself https://www.mongodb.com/licensing/server-side-public-license:

> “Service Source Code” means the Corresponding Source for the Program or the modified version, and the Corresponding Source for all programs that you use to make the Program or modified version available as a service, including, without limitation, management software, user interfaces, application program interfaces, automation software, monitoring software, backup software, storage software and hosting software, all such that a user could run an instance of the service using the Service Source Code you make available.