I'm currently employing KeyCloak 19.0 (KC), I need to map an existing permission system to a new one based on KC.
I've been browsing many resources up to now (mostly SO, KC's documentation, and videos on YouTube) and came to the conclusion that ABAC access is achieved by js-based policies. However, I also noticed that this feature is in preview and as such it could change or become unavailable in the future Supported and preview features.
So I ask, is there any way to achieve ABAC without employing js-policies? (Possibly mixing many policy types.) I'm just asking about the possibility to do so, I do not care particularly about performances in this stage of the analysis.