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Teradata.Client.Provider
Version 12.0.0
.NET Data Provider for Teradata > Developer's Guide > Migration Considerations for the .NET Data Provider for Teradata > Version 12.0.0

Before upgrading to .NET Data Provider for Teradata version 12.00.00.00, please note that application changes may be required due to new feature content provided in this release.

TeraGSS Authentication Mechanisms

This release includes a 100% managed code implementation of TeraGSS.  Some previously supported authentication mechanisms have been removed which may require application changes.  A new SPNEGO mechanism is now offered in the TeraGSS client and server configurations.  This mechanism utilizes the SPNEGO negotiation protocol to authenticate using Kerberos.

Note
SPNEGO is disabled by default. It must be enabled from the Teradata Database. Refer to the Teradata Database documentation for more information on activating this mechanism.

TDGSS E-Fix Dependencies

In order to utilize the new SPNEGO authentication mechanism, the following minimum TDGSS E-Fix versions must be installed:

Windows

MP-RAS

LINUX

DataSource Discovery

The algorithm for COP DataSource discovery differs from prior releases.  The prior release resolves all DNS entries during the first connection attempt to determine how many entries are in DNS.  This is no longer true.  Applications should review DataSource Resolution for a full description of the current behavior and may wish to specify a DataSourceDnsEntries property.

ReadAhead

ReadAhead is now enabled by default.  Prior restrictions related to concurrent LOB retrieval have been removed.

See Also

What's New in the .NET Data Provider for Teradata 12.00.00.00