Please be advised that only openSIS-CE version 4.6 or 4.7 or 4.8X or 4.9 or 5.0 or 5.1 or 5.2 can be upgraded to the new version 5.2 via this installer.
If you are running version 4.6 or 4.7 or 4.8X or 4.9 or 5.0 or 5.1 or 5.2 click Continue to upgrade, otherwise click Go Back and try New Installation.
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