Direct Answer
Aug 20 Major Update is covered against the released Security 51 build, not the demo. The current baseline is release on August 12, Endless Mode on August 27, and the latest major gameplay/content update on September 3. Follow the linked official change record for patch-sensitive details.
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.
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.