The most reliable way to find older versions is through the SAP Support Portal .
He checked the version headers. It wasn't the relatively modern version 12 or 16. It was version 11. SQL Anywhere 11. Sybase Sql Anywhere 11 Download-
SAP no longer actively distributes or supports version 11. They have moved users toward much newer versions, specifically SAP SQL Anywhere 17 . The most reliable way to find older versions