If you have Dynamic Server Version 9.40, 9.30, 9.2x, 7.3x, or 7.24, you can migrate directly to Dynamic Server Version 10.0. Table 11 lists migration paths for converting from an existing source database server to a newer target database server. The Reference column shows where to find information about how to convert.
If you are converting from OnLine 5.1x, Dynamic Server 7.22, Dynamic Server 7.23, or Dynamic Server 7.24 (with Enterprise Replication), you must convert to an intermediate, slightly older version of Dynamic Server before you convert to Version 10.0. Figure 1 shows the paths for converting from these older database servers to Dynamic Server Version 10.0.
| Source Database Server | Target Database Server | Reference |
|---|---|---|
| Dynamic Server 9.40
Dynamic Server 9.30 Dynamic Server 9.20 or Dynamic Server 9.21 Dynamic Server 7.3x Dynamic Server 7.24 or Workgroup Edition 7.24 |
Dynamic Server 10.0 | Preparing for Migration and
Converting to Dynamic Server 10.0 |
| Universal Server 9.14 | Dynamic Server 9.30 | The Version 9.30 Migration Guide |
| OnLine Dynamic Server 7.23
OnLine Dynamic Server 7.22 OnLine 5.1x |
Dynamic Server 7.31 | The Version 7.31 Migration Guide |
Figure 1 shows the paths for converting from specific older database servers to Dynamic Server Version 10.0.

For information on migrating directly to Dynamic Server Version 10.0 from a 9.40, 9.30, 9.2x, 7.3x, or 7.24 database server, see Preparing for Migration and Converting to Dynamic Server 10.0.
If you need to migrate to another version of Dynamic Server before you migrate to Version 10.0, see the Migration Guide that is included in the documentation set for that database server. For example, if you need to migrate to Version 7.31 before migrating to Version 10.0, see the Version 7.31 IBM Informix: Migration Guide for information on migrating to Version 7.31. You must follow the steps in that guide before you follow the instructions in the current guide for migrating to Version 10.0.
Table 12 shows the database servers to which you can revert from Dynamic Server 10.0. After you install Version 10.0, you cannot revert from Version 10.0 to any IBM Informix database server that is not shown in the list. The Page column shows where to find information in this manual about how to revert.
| Source | Target | Page |
|---|---|---|
| Dynamic Server 10.0 | Dynamic Server 9.40
Dynamic Server 9.30 Dynamic Server 9.2x Dynamic Server 7.3x Dynamic Server, Linux Edition Version 7.3x Workgroup Edition 7.3x Dynamic Server 7.24 Dynamic Server, Linux Edition Version 7.3x Workgroup Edition 7.24 |
Reverting from Dynamic Server 10.0 |