FQL v4 will be decommissioned on June 30, 2025. Ensure that you complete your migration from FQL v4 to FQL v10 by that date.

Fauna accounts created after August 21, 2024 must use FQL v10. These accounts will not be able to run FQL v4 queries or access the v4 Dashboard.

For more details, see the v4 EOL announcement and migration guide. Contact support@fauna.com with any questions.

Best practices

This section provides several best practices that cover a variety of Fauna use cases.

  • Learn about best Database performance practices to keep in mind when designing your app, including the effect of counters and other frequently updated fields, data persistence, and the cardinality of indexed fields.

  • Learn Defensive query strategies for situations where fields or documents might be deleted and can no longer be referenced.

  • The HTTP timeouts best practices describes possible causes of timeout errors and how to recover from query timeout.

  • The Indexes best practice for using collection indexes compared to the Documents function.

  • Learn about Security best practices for key management and using ABAC roles to limit document access scope.

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