The official SAP Product Availability Matrix (PAM) is the correct source for information on SAP product End of Mainstream Maintenance (EoMM).
The official (now legally rebranded as SAP IQ 16.1 ) installation files, support packages, and patches can be downloaded directly from the official SAP Software Download Center . If you do not have an active enterprise license or an S-user account, you can request an evaluation build via the official SAP IQ Trial page. sybase iq 161 download link