Do you run z/OS open tools on z/OS V2.4 or older?

[IgorTodorovskiIBM]

We're considering changing the min arch level to be z13 (-qARCH11 or -march=arch11). We are also planning to migrate to 2.5 as the min OS supported level.

For reference: (thanks @AnthonyGiorgio)

https://www.ibm.com/support/pages/system/files/inline-files/IBM%20Mainframe%20Life%20Cycle%20History%20V2.14%20-%20October%2010%202023_0.pdf

[lbdyck]

I would vote for support for all current processors along with one previous generation.

[AnthonyGiorgio]

It would affect me at the moment as one of the LPARs in my test sysplex is at v2.4 on a z14. When in the future this is rotated out and the next z/OS release is rotated in, I would have no problems with a 2.5 minimum.

[skurtz97]

I do, but I shouldn't, and it's in the process of being upgraded so it shouldn't matter by the time the deadline passes I hope.

I think a 2.5 target for the future makes a lot of sense given 2.4 goes out of support in (checking calendar....) about 10 days.

Given how much improvement there has been in the C libraries and whatnot post-2.4, it would seem to me that it would be a good thing to move along with making the base something like 2.5 and arch level 13. But I'm probably not the right person to speak on issues of maintainability or productivity or that sort of thing.

I suppose the point I'm trying to make is that postponing a drop of official support for 2.4 much past the end of September deadline doesn't seem to make all that much sense (that doesn't mean people should intentionally break things to teach me and Anthony a lesson 🤣....) at least for these open source versions of the tools.

Just my two cents 🤷.