New categories for risk class? : r/SCP

I came back to SCP recently after a couple years, and now there's this Esoteric, Disruption class, and Risk class stuff that I can't find any sort of guide on. What's the

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Anomaly Classification System (ACS) Guide - SCP Foundation

SCP-790 Blood / Object Class: Euclid / Fake Blood / Cosplay /

Class-D, RBreach Wiki

Risks, Free Full-Text

Sustainability, Free Full-Text

1> CONTAINMENT CLASS 2> DISRUPTION CLASS 3> RISK CLASS 4> SECONDARY CLASS CONTAINMENT SECONDARY CLASS APOLLYON Uncontainable and world-ending. ARCHON 'Can be co…

Anomaly Classification System (ACS) Guide - SCP Foundation

SCP Disruption and Risk Classes