[igorhvr]

About deprecation: the gold standard is what AWS is doing with SimpleDB: essentially, never.

The thing here is that if you run hundreds of services in production - many of which work smoothly and you don't need to touch often, you will find that Google's habit of forcing you to change how to use their tooling will generate a huge burden...

They discourage you from using it and make it clear that for every use case some other tool at AWS would be best, and have been doing so for several years now... They wont even list it anymore under https://aws.amazon.com/products/databases/ ..

Still, they support it ( https://aws.amazon.com/simpledb/ ) because there are customers with legacy systems that depend upon this service.