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Interoperability

If you plan to use Diffusion™ servers and clients of different versions together, review the following information that summarizes support between versions.

Interoperation between clients and servers

The following table describes which API client versions interoperate with which server versions.

The general rule is that an older client can connect to a newer server, but a newer client cannot connect to an older server.

Table 1. API interoperation
  Server version
Client version 6.4 6.5 6.6 6.7
6.4 Supported Supported Supported Supported
6.5 Not supported Supported Supported Supported
6.6 Not supported Not supported Supported Supported
6.7 Not supported Not supported Not supported Supported

Interoperation between servers

Replication

All Diffusion servers within a cluster must be at the same minor version level.

For example, a cluster can include a mixture of 6.4.2 and 6.4.5 servers, but a cluster with a mixture of 6.4 servers and 6.7 servers is not supported.

Server versions 6.4 6.5 6.6 6.7
6.4 Supported Not supported Not supported Not supported
6.5 Not supported Supported Not supported Not supported
6.6 Not supported Not supported Supported Not supported
6.7 Not supported Not supported Not supported Supported
Remote topic views

Remote topic views are supported between servers of version 6.5.0 or above.

Fan out

Fan-out distribution is supported between servers of different versions.

Server versions 6.4 6.5 6.6 6.7
6.4 Supported Supported Supported Supported
6.5 Supported Supported Supported Supported
6.6 Supported Supported Supported Supported
6.7 Supported Supported Supported Supported