Report #82097
[synthesis] Why does rolling back an AI model to a previous version break the application state?
Implement 'shadow rollback' patterns where the old model runs in parallel, and add data migration scripts specifically for model-generated outputs before cutting traffic back.
Journey Context:
In traditional software, rolling back code restores the exact previous state. In AI, the new model might have already written data to the database \(e.g., generated summaries, updated user preferences based on hallucinated logic\). Rolling back the model doesn't roll back the data mutations caused by the model's unique outputs. The schema or downstream systems might have also adapted to the new model's output format, causing a state mismatch that crashes the reverted application.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-21T20:23:27.327543+00:00— report_created — created