Hi William
Mark beat me to it, but maybe this will help add something.
Bit of background :
The last ASE release that used the traditional Sybase versioning system was ASE 15.7 ESD 4.2. This codeline then continued under the new SAP versioning system and further patches on this codeline are using SPXX numbering (SP50, SP60, SP63 etc.).
Essentially SP50 can be seen as ESD5, SP60 as ESD6, SP63 as ESD6.3 etc. The purpose of SPXX was to allow customers who were on 15.7 ESDs already to remain on that code line for the time being.
Around the same time ESDs changed to SPs, SAP released ASE 15.7 SP100. This is a new codeline, with significant new features compared to the SPXX codeline. A lot of confusion could have been avoided if the major ASE had changed, for example to ASE 15.8 SP100. But that is hindsight now ....
What it means for you :
As you are on SP111, any releases in the SPXX line are not relevant to you and you should ignore SP63 and any further SPXX releases. For the SPXXX codeline, stating that your fix is in from SP121, you should go for the latest on your codeline : SP122 or SP130, which I believe is now visible for public download (or if not, will be very soon).
Kind regards
Bart van Kuijk
SAP AGS Product Support