Incompatible database versions with ProCall Enterprise installation
State of knowledge
January 2023
Observation
The UCServer of ProCall 6 Enterprise does not start/"crashes".
In the log file startup.txt the error message"Database Version is X. Expected version is Y. Please update UCServer."
Reason
A downgrade was made to a ProCall Enterprise of the software, which is not compatible with the database version.
Warning
When running an installation, which can also be a downgrade, the database version is not checked for compatibility.
There is no warning or error message during installation.
Update/upgrade path without the possibility to downgrade
With an update/upgrade to one of the mentioned product versions (and all product versions between two database versions), the database is also irrevocably changed. After that, a downgrade – change to an older product version with an older database version – is no longer possible. A downgrade to a version within the same database version is possible.
Overview table: Database versions in ProCall Enterprise
The following tables show an overview of the product versions with which a new database version was introduced.
