SAP ended the maintenance for the 6.20 Kernel as the 6.40 Kernel is fully downward compatible with the 30.06.2005. Since then no 6.20 patches are avaiable any more.
SAP created a hot news, because the reorg job for batch jobs "sometimes" - obviously somehow in the support packages SAPKB46C50 und SAPKB62050 - deletes a lot more than expected and therefore deletes data.
So, it is strongly recommended to ...