The changes to dynamically reload a Telnet connection (or TN3270E printer
management) exit without requiring a stack restart were introduced in Lev el 520. The dynamic reload is accomplished via OBEYFILE processing of an INTERNALCLIENTPARMS update. See the Usage Notes for the INTERNALCLIENTPA RMS statement for details. (And when so doing, read that 'TN3280EEXXIT' reference as a 'TN3270EEXIT'... I see that a correction is in order...;-)