Version 2.4, to outsiders a small increment, is the slab of concrete where that architecture met scale. Someone on the team joked that “2.4” should read like a firmware release that quietly moves tectonic plates. That joke stuck because the update did feel tectonic: compact changes that reoriented how models anchor memory to motive. The models stopped being ephemeral responders and started to keep a faint, structured echo of their internal deliberations.