Hi Naim,
Yes, the Sybase 'Change Request' website has been retired as of October 1st, 2014 - see my response here: The 'Change Requests' site does not work properly - SQLA Forum
You can either view the README information when you download the SQL Anywhere Support Package (SP) (a.k.a. EBF) from the "Info" link on the SAP Support Portal / SAP Service Marketplace to download an HTML file, or you can use the two Notes we have created for the SQL Anywhere READMEs that will be kept up-to-date which you can search directly:
- SQL Anywhere 12 Release Notes - https://service.sap.com/sap/support/notes/2078167
- SQL Anywhere 16 Release Notes - https://service.sap.com/sap/support/notes/2075367
Thanks,
Jeff Albion
SAP Active Global Support