After you upgrade a Replication Server and its user databases, you must decide whether to commit to the new Replication Server version level.
In a replication system that includes Replication Server versions 12.6 through 15.5, and for which the site version is set to its software release level and the system version is 1260 or higher, each Replication Server can use all the features of its release. Such a system is called a mixed-version system.
In a mixed-version system, interaction between Replication Servers of different version levels is limited, and information associated with new features may not be available to Replication Servers of earlier versions. Replication Servers of the same version can exchange full information about the software features they support.
If, for example, you are upgrading to version 15.5, you can use new Replication Server features that interact with other Replication Servers only if all these conditions are true:
The system version has been set to 1260. See “Preparing to upgrade”.
The site version for both Replication Servers has been set to the current site version, such as 1550. See “Setting the Replication Server site version”.
The routes between the Replication Servers have been upgraded. See “Upgrading routes”.
Table 3-1 illustrates the relationship between the software version number and the system version number. Note especially the ability to use the full capabilities of version 15.5 when the system version is at 1260.
Replication Server software version |
System version 1260 and higher |
|---|---|
15.5 |
Full capability when site version is set to 1550 |
15.2 |
Full capability when site version is set to 1520 |
15.1 |
Full capability when site version is set to 1510 |
15.0 and 15.0.1 |
Full capability when site version is set to 1500 |
12.6 |
Full capability when site version is set to 1260 |
For example, new features of version 15.5 are available only when the system version is at least 1260 and the site version is set to 1550.
If a software version is supported with full capability at a given system version, you can install new Replication Servers of that software version.
