docs(dataset-versioning): support running experiments on versioned datasets

[marliessophie]

Important

Updates documentation to support running experiments on versioned datasets, with examples for fetching datasets at specific version timestamps and benefits for reproducibility.

• Documentation Update:
  • Adds support for running experiments on versioned datasets in datasets.mdx.
  • Provides examples for fetching datasets at specific version timestamps using Python SDK, JS/TS SDK, and Langfuse UI.
  • Explains benefits of using versioned datasets for reproducibility and performance comparison.
• API Changes:
  • GET APIs now support fetching datasets at specific version timestamps using the version parameter.

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Project	Deployment	Actions	Updated (UTC)
langfuse-docs	Ready	Preview, Comment	Feb 9, 2026 7:32pm

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