Driver & client support

This article describes considerations for client connectivity to Always On availability groups,

including prerequisites, restrictions, and recommendations for client configurations and

settings.

The section below provides information about Always On availability groups support for client

connectivity.

The following table summarizes driver support for Always On availability groups:

SQL Native Client

11.0 ODBC

Yes

Yes

Yes

Yes

Yes

SQL Native Client

11.0 OLEDB

No

Yes

Yes

No

No

ADO.NET with.NET

Framework 4.0 with

connectivity patch

Yes

Yes

Yes

Yes

Yes

ADO.NET with.NET

Framework 3.5 SP1

with connectivity

patch

Yes

Yes

Yes

Yes

Yes

Microsoft ODBC

Driver 13.1+ for

Yes

Yes

Yes

Yes

Yes

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