Solution : https://service.sap.com/sap/support/notes/156554 (SAP Service marketplace login required)
Key words : 
platform availability matrix, symptom db2/390 / 4, longer updated, supported kernels, operating systems, information, databaseversions
Related Notes : 
       
| 1086956 | 46D_EX2 Kernels | 
| 1009695 | Desupport of Kernels 31I, 31I_COM, 40B, 40B_COM, 45B, 46D | 
| 318846 | Installing the 4.6D kernel in 4.6A/B/C SAP systems | 
| 138906 | DB2/390: Planning Info (release,connectivity matrix) | 
| 81737 | DB2-z/OS: APAR List | 
| 19227 | Open newest saposcol |