The October 2026 release of Informatica MCP servers and AI Agent Engineering includes the following changed behaviors.
MCP protocol version
Informatica MCP servers have been upgraded to the stateless MCP protocol 2026-07-28 using streamable HTTP transport. To ensure backward compatibility, they operate in dual-era mode, continuing to support legacy clients using MCP protocol 2025-06-18.
AI Agent Engineering supports MCP Python SDK v2. While this upgrade brings full support for the latest stateless protocol architecture, Informatica MCP servers remain backward compatible with your existing v1.x MCP client implementations. You don't need to make code or configuration changes to maintain your current workflows.
When you connect to an Informatica MCP server using Python, the code samples on the Configuration tab are upgraded to show the syntax for MCP Python SDK v2.
The Informatica OAuth servers are renamed based on the OAuth server grant type instead of the OAuth version. The following table lists the new and previous names:
New name
Previous name
Informatica OAuth Server (Authorization Code Grant)
Informatica OAuth 2.1 server
Informatica OAuth Server (Client Credentials Grant)
Informatica OAuth 2.0 server
Similarly, the OAuth client types are now called Authorization Code clients and Client Credentials clients instead of OAuth 2.1 clients and OAuth 2.0 clients.
For more information about using OAuth authentication, see OAuth authentication.
Updated terminology for MCP server tools
When you view details for a shared or composite MCP server, the Actions tab is renamed to Tools to align with industry standard terminology. Other UI elements related to adding or editing tools are also renamed so that they refer to tools instead of actions.