[nikolay]

I am not sure when they made it free to use (and not sure under what terms exactly), it's part of their most expensive TFC offering and always has been, but why do they believe that people are interested in a closed-source project, that's pretty much not used anywhere else, unlike OPA? I am a TFC commercial user and I'm not interested in using Sentinel as if I decide to switch to Scalr, all that work would be lost of the license doesn't allow me to use it, and if the competitor platforms don't support it due to the licensing constraints.

[mh0pe]

It looks like it dropped a few months after TFC[1] with a bunch of additional features. At least these days, Teams supports Sentinel, and in personal use cases, I've had TFC be backend and threw a git pre-commit hook at it for Sentinel on my machine. My guess is that for some time, they wanted to focus on enterprise sales and Sentinel was an easy way to upsell. SSO still makes Business worth it though.

[1]: https://www.hashicorp.com/blog/announcing-hashicorp-sentinel...