The blog post says that some of these features now appear in ESS (AWS hosted ES), and that the rest will arrive soon.
Did AWS do the same thing with Mongo?
Did AWS do the same thing with Mongo?
I believe in response to some licensing changes MongoDB made, so the AWS service targets the last permitted license release by Mongo.
https://aws.amazon.com/blogs/aws/new-amazon-documentdb-with-...
*I forgot to mention, they did not release the code for this as you may have been looking for apple-to-apple comparison with the ES situation.
Amazon DocumentDB was in development for a long time, and development started well before any of the license changes that MongoDB (the company) made to MongoDB (the database).