Checking the SPS 07 release notes is a good way to know what is the first revision which is included in SPS 07.
SAP HANA Platform – SAP Help Portal Page -> What’s New – Release Notes
This points to SAP Note 1921675.
And this note states the following:
B) Updating to SAP HANA platform SPS 07
See the document
"SAP HANA Master Update Guide - SAP HANA Platform SPS 07":
http://help.sap.com/hana/SAP_HANA_Master_Update_Guide_en.pdf
The SAP HANA platform SPS 07 contains SAP HANA database Revision 70 (see SAP Note 1944771).
So, if the 1st revision of SPS 07 is rev70, 69 is still SPS 06.