.NET Driver release notes for 2026

This article contains the release notes for the .NET Driver, including the following when applicable:

  • Behavior changes

  • New features

  • Customer-facing bug fixes

Snowflake uses semantic versioning for .NET Driver updates.

See .NET Driver for documentation.

Version 5.4.1 (February 17, 2026)

New features and improvements

  • Extended login-request telemetry with Linux distribution details parsed from /etc/os-release.

Bug fixes

  • Fixed IndexOutOfRangeException in Arrow result chunk processing by adding retry state cleanup, batch integrity validation, and defensive bounds checking in ExtractCell().

Version 5.4.0 (February 05, 2026)

New features and improvements

  • Added support for Red Hat Enterprise Linux (RHEL) 9.

  • Added support for the DECFLOAT data type (returned as string to preserve full precision).

Bug fixes

  • Fixed IndexOutOfRangeException in Arrow result processing when empty batches are returned by the Snowflake backend.

Version 5.3.0 (January 07, 2026)

New features and improvements

  • Introduced a shared library for extended telemetry to identify and prepare the testing platform for native Rust extensions.

Bug fixes

  • None.

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