If it does exist, and already contains a current installation, you are warned
that you will overwrite the older version. Click
Next.The
installer checks that the version you want to update is compatible with the
version of the SAP Replication Server you are installing. If the version is
incompatible, the Check Upgrade Incompatible Version dialog appears, and you
see this:
Warning: The current "SAP Replication Server" in your
destination directory is not compatible with this version upgrade; some bug fixes may be unavailable
if you proceed. See the release note for more information.
You
may see a similar message if your SAP Replication Server is an out-of-band
release, such as an emergency bug fix, one-off, controlled, or instrumental
release:
Warning: The current "SAP Replication Server" in your
destination directory is an out-of-band release; some bug fixes may be unavailable if you proceed.
Verify that the bug fixes you need are in this newer version before proceeding with the upgrade.
If
you see such messages, click
Cancel to stop the
installation process. To override the error and continue with the installation,
select
Proceed installation with incompatible version
and click
Next.
Warning! Upgrading to an
incompatible version may cause software regression. SAP recommends that you
cancel the installation and obtain a compatible version of an SAP
Replication
Server.
If
you perform the installation in silent, or unattended mode, and the versions
are incompatible, the installer prompts you to re-run the installer with this
argument, then
quit:
DALLOW_UPGRADE_TO_INCOMPATIBLE_VERSION=true