I've noticed that probably from WAS 6.40 there is a new feature regarding logging change of sy-subrc system field.
If you start an ABAP debugger and do some change of field sy-subrc there is an SM21 log entry generated like:
10:19:05 DIA 00 200 TESTUSER SEU_ A19 Field contents changed: sy-subrc -> 0
10:19:05 DIA 00 200 TESTUSER SEU_ A14 > In Program LZKONVU03 , Line 0218 , Result ?????????
Do you have some infomation whether other fieds are gonna be logged like this? Since which release of WAS is this possible? Are there any system parameter to influeance control of this behavior?