Oracle Client / Server Interoperability Support

	Server Version
Client Version	11.1.0	10.2.0	10.1.0	9.2.0	9.0.1	8.1.7	8.1.6	8.1.5	8.0.6	8.0.5	7.3.4
11.1.0	Yes	Yes #6	Yes #6	ES #5	No	No	No #3	No #3	No #3	No #3	No #3
10.2.0	Yes #6	Yes	Yes	ES #5	No	Was	No #3	No #3	No #3	No #3	No #3
10.1.0(#4)	Yes #6	Yes	Yes	ES	Was	Was #2	No #3	No #3	No #3	No #3	No #3
9.2.0	ES #5	ES #5	ES	ES	Was	Was	No	No	Was	No	No #1
9.0.1	No	No	Was	Was	Was	Was	Was	No	Was	No	Was
8.1.7	No	Was	Was	Was	Was	Was	Was	Was	Was	Was	Was
8.1.6	No	No	No	No	Was	Was	Was	Was	Was	Was	Was
8.1.5	No	No	No	No	No	Was	Was	Was	Was	Was	Was
8.0.6	No	No	No	Was	Was	Was	Was	Was	Was	Was	Was
8.0.5	No	No	No	No	No	Was	Was	Was	Was	Was	Was
7.3.4	No	No	No	Was	Was	Was	Was	Was	Was	Was	Was

Key:

Yes	Supported
ES	Supported but fixes only possible for customers with Extended Support .
Was	Was a supported combination but one of the releases is no longer covered by any of Premier Support , Primary Error Correct support , Extended Support nor Extended Maintenance Support so fixes are no longer possible.
No	Has never been Supported

Specific Notes:

• #1 - See Note 207319.1
• #2 - An ORA-3134 error is incorrectly reported if a 10g client tries to connect to an 8.1.7.3 or lower server. See Note 3437884.8 .
• #3 - An ORA-3134 error is correctly reported when attempting to connect to this version.
• #4 - There are problems connecting from a 10g client to 8i/9i where one is EBCDIC based. See Note 3564573.8
• #5 - For connections between 10.2 (or higher) and 9.2 the 9.2 end MUST be at 9.2.0.4 or higher. Connections between 10.2 (or higher) and 9.2.0.1, 9.2.0.2 or 9.2.0.3 are not supported.
• #6 - For connections between 11.1 (or higher) and 10.1 / 10.2 the 10g end MUST be at 10.1.0.5 / 10.2.0.2 (or higher) respectively in order to use PLSQL between those versions. See Note 4511371.8 for more details.

General Notes:

1. For database links between different Oracle versions connections must be supported in BOTH directions in the matrix above.
   eg: As 9.2 -> 7.3.4 is not supported then database links between these version are not supported in either direction.
   If you need to use a database link between an unsupported combination it may be possible to use an intermediate database.
   eg: 10.2 -> 8.1.7 -> 8.0.6
2. Unsupported combinations may appear to work but can encounter errors for particular operations. The fact that they appear to work should not be relied upon - issues on unsupported combinations will not be investigated.
3. Since new database servers are compatible with a limited set of older OCI clients, it may not be necessary to upgrade the client software when upgrading the database. However, some new features may not work without upgrading the client software. So, for example, an Oracle 7.3.4 client is able to connect to an Oracle8i database, but is not able to take advantage of newer features such as Transparent Application Failover (introduced in v8).
4. Oracle Applications , or other Oracle products, may have supported configurations not listed in the matrix above.
5. The matrix above also applies between different platforms and between 32/64 bit releases of Oracle client / server except where any Oracle platform desupport notice indicates otherwise .
6. Unix BEQUEATH (BEQ) connections are NOT supported between different releases. eg: Client 9.2.0 is not supported to make an Oracle Net connection to a 10.1.0 server using the BEQ protocol adapter regardless of the interoperability support listed above. See Note 364252.1 for more details.