> Documentation index: [Saleor](/llms.txt) · [This section](/upgrade-guides/llms.txt)
> Source: https://docs.saleor.io/upgrade-guides/core/3-17-to-3-18

# Upgrading From 3.17 To 3.18

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To follow the zero-downtime strategy when upgrading to 3.18, **It is recommended to first migrate to at least 3.17.2** and turn on the Celery worker to process all data migrations asynchronously. Otherwise, you will need to downtime your solution to ensure correct data migration.