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July 17, 2026

Versions & Compatibility overview

Max Deichmann

Check which SDK, server, and API versions work together on one page, and see all deprecation dates for Langfuse Cloud and self-hosted in one schedule.

You can now look up how Langfuse server, SDK, and API versions relate on a single page: Versions & Compatibility. It covers the SDK ↔ server compatibility matrix with minimum server versions, API version availability across Langfuse Cloud and self-hosted deployments, and answers to the most common compatibility questions.

This is useful when you are planning an SDK upgrade on a self-hosted deployment (check the minimum server version first), deciding when to move from the v1 to the v2 Observations and Metrics APIs, or verifying which SDK versions deliver real-time data on the Langfuse v4 data model.

Learn more:

• Versions & Compatibility
• Versioning policy