>>>>> "Jeffrey" == Jeffrey Altman [Kermit Project] writes: Jeffrey> How would it break the ABI? The changes are Windows Jeffrey> only. The Krb5 Krb4 library is not supported (nor Jeffrey> shipped) on Windows at the present time. It's a little unclear to mea how much the krb5 krb4 library is or is not supported on Windows. You yourself said that you had implemented support for this library in Kermit because people were using it. KFW does not ship this library, but the krb5 sources do support building outside the KFW framework on Windows and in that configuration do build the library. When we contemplated the krb524 change, you were asked to review whether the difference in the credential structure would be a problem. You said that because the KFW krb4 library had a larger credentials structure and that because it was allocated by the caller, no problem would result. The fact that we were concerned about the difference in the credentials structure suggests to me that we are at least reluctant to change it for 1.3.