Direct Answer
Security 51 is released and live. The current verified content baseline is the September 3, 2026 update, with Endless Mode live since August 27 and Steam Deck marked Verified. This page separates current mechanics from older demo behavior and links every patch-sensitive claim to its official update.
Current-build evidence
This core / current build / updates record is maintained against the released build, not treated as a demo-only answer. The source ledger below was checked on September 26, 2026.
Where the official source identifies a mechanic but does not publish its hidden values, visitor answer, formula, or complete outcome table, this page preserves that boundary instead of filling it with an estimate.
- Launch · Aug 12, 2026 — review this official patch record for the change that affects this topic.
Use it in the inspection chain
- 01
Start with the current instruction, visitor record, or mode screen shown by the game.
- 02
Connect the topic to identity, documents, the relevant scanner or medical tool, and any observed anomaly.
- 03
Record the evidence before choosing the available decision; do not reuse a fixed answer from another randomized case.
- 04
If the result remains unresolved, follow the current quarantine, Isolation Ward, City Operations, or troubleshooting path linked below.
What this page does not claim
- No invented visitor names, anomaly tiers, clearance tables, hidden thresholds, or operation formulas.
- No fixed day-by-day or shift-by-shift answer when current events can vary.
- No community claim is presented as an official current-build rule.