Hello Alexander,
HANA SPS can be downloaded from the SAP Service Market Place. For that you need an account and the privileges to download the software. But of course you need also a licensed HANA system to be able to apply the SPS.
For the SPS you do not have to pay if you have your HANA license and you pay the usual maintenance costs.
If you are looking for news introduced with SPS09 you can check the release notes:
- SAP HANA Platform SPS 09, Features Included in Revision 90 - What's New in the SAP HANA Platform (Release Notes) - SAP L…
- What's New in the SAP HANA Platform (Release Notes) - SAP Library
Regards,
Florian