Two small fixes, both cosmetic in practice: Fable 5 names with a trailing context-window tag now resolve cleanly, and Windows users who enabled the sandbox stop seeing a bogus "sandbox dependencies missing" warning at startup. If you only update for headline features, the one to grab is yesterday's 2.1.172 — it lets sub-agents spawn their own sub-agents up to five levels deep, which is the change that actually shifts what you can script in an agent loop.