Evidence-linked playbook

Model lifecycle migration

Use this guide when a provider changes a model's lifecycle, announces a retirement, or publishes a replacement window.

  1. 1

    Inventory model references

  2. 2

    Validate a supported replacement

  3. 3

    Test representative workloads

  4. 4

    Schedule and observe the cutover

Migration principles

Start from the provider's current contract, test representative workloads, and keep a rollback boundary until the new behavior is observed in production.

The evidence list below is refreshed from approved public events. It links each guide to the official source observations available today.

Current official evidence

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