Re: Moving to QSECURITY 40

Hi, all,
Not only possible -- I have seen OPM *PGMs with an "earliest release this program can run" set to V1R1 or V1R2.   Of course it is only OPM *PGMs, because prior to V2R3 there was no such thing as ILE, and even at V2R3, only ILE C/400 was available (in 1993).
Mark
On Thursday, November 6, 2025 at 11:24:25 AM EST, David Gibbs via MIDRANGE-L <midrange-l@xxxxxxxxxxxxxxxxxx> wrote:

On Wed, Nov 5, 2025 at 3:24 PM Charles Wilt <charles.wilt@xxxxxxxxx> wrote:

"programs that were created before Version 1 Release 3..."

Is that even possible?  Given CISC to RISC at 3.6 and the one (two?) other
version upgrades that required program recreation...

I'm pretty sure that's not only possible, but one of the major value
propositions of IBM i.

As long as the program template exists, it can be rebuilt for the current
release & hardware.

IIRC, the biggest issue was when you removed observability from a program
(which many SW vendors did, to prevent debugging), the template was removed.

Now the CHGPGM command allows you to specify what observability data is
removed.  As long as you don't remove *CRTDTA observability, the program
can be recreated by the system.

david