RPM conflict error when following multi-version client installation guide (6.3.23 to 7.1.65)

When trying to install the 7.1.65 client on a machine with 6.3.23 already installed, the rpm -ivh command fails due to file conflicts. The documentation implies that multiple versions can coexist, but the RPM package structure prevents this for standard binary paths (e.g., /usr/bin/fdbcli).

Error Snapshot:

Start by reviewing the multi-version client installation guide and the RPM installation instructions described in the report. Reproduce the rpm -ivh conflict between versions 6.3.23 and 7.1.65, then determine whether the guidance or package behavior needs to be corrected. Done means the documentation accurately reflects whether these versions can coexist.

Written by the indexing model from the issue text.