In a company I used to work for, "sustaining engineering" was the team of developers that handled all of the bugs and issues reported by customers on old-but-still-technically-supported versions of the products. (The ones who worked on current versions of the products where just "engineering.")

So basically heroku will fix whatever is broken, but don't expect any new features or development.

From a business perspective, this means they will not be investing in innovation on the platform anymore. Instead, they will focus their efforts on maintaining the current operations and keeping the lights on.

I am sure that the guy whose name is on the Post didn't even write this himself. Probably some corporate writer using LLM :).

Could have just said we will Keep the Lights on

We've been optimizing for decades to engineer the bullshit-generating super-soldiers required to craft modern PR statements.

It's like PBS, they are going to beg for your money now with a sustaining engineering membership

Surely it's a typo and they meant "sustainable"?

Otherwise IMO such an odd word choice. Definition:

>> providing physical or mental strength or support