Data API client upgrade guide (C#)
DataStax recommends using the latest versions of the client to access the newest features, improvements, and bug fixes.
This page describes major changes in specific client versions, including major new features, deprecations, removals, and breaking changes. This page is not a changelog and it does not provide client release notes.
For information about the latest client versions, release notes, installation and upgrade instructions, and other client documentation, see:
Version 2.3
DataStax released version 2.3 in July 2026.
PCU groups
The clients added support for Provisioned Capacity Units (PCUs):
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You can specify a PCU group when you create a database.
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There is a new method to list PCU groups.
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The method to find available regions for database creation returns information about PCU groups.
Renamed classes
CreateKeyspaceOptions, DropKeyspaceOptions, ListKeyspacesOptions, DoesKeyspaceExistOptions, and RegionInfo were moved from DataStax.AstraDB.DataApi.Core to DataStax.AstraDB.DataApi.Admin.
Previous upgrade guides
The following information is for earlier client releases.
Version 2.2
DataStax released the first stable version (2.2) of the C# client in June 2026.
