# old versions & zOS 2.2 compatibility user experiences **URL:** \ **Category:** Forum\ **Tags:** Adabas-Natural, Adabas, Adabas-on-Mainframes, Adabas-Basics-on-Mainframes\ **Created:** [April 8, 2019, 8:25am UTC](https://techcommunity.softwareag.com/t/old-versions-zos-2-2-compatibility-user-experiences/203410 "2019-04-08T08:25:57Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Melissa\_Case1](https://avatars.discourse-cdn.com/v4/letter/m/439d5e/32.png) [@Melissa\_Case1](https://techcommunity.softwareag.com/u/Melissa_Case1)\ **Post date:** [April 8, 2019, 8:25am UTC](https://techcommunity.softwareag.com/t/old-versions-zos-2-2-compatibility-user-experiences/203410/1 "2019-04-08T08:25:57Z")
All, We are upgrading to zOS 2.2 in a few weeks. Here are the following versions we’re on for Adabas, Natural, Natural DB2 & Natural IMS. If ANYONE has any experience or validation of these versions running on higher levels of zOS, PLEASE let me know. Current product / version Adabas 8.2.3 oldest SAG verified version for 2.1 & 2.2 is 8.2.6 Natural/DB2 4.2.7 oldest SAG verified version for 2.1 & 2.2 is 8.2.5 Natural CICS interface 4.2.7 oldest SAG verified version for 2.1 & 2.2 is 8.2.5 ADABAS Natural CICS Interface 8.2.3 oldest SAG verified version for 2.1 & 2.2 is 8.2.5 Natural IMS TM Interface 8.2.3 oldest SAG verified version for 2.1 & 2.2 is 8.2.5 Adabas Online Services 8.2.3 oldest SAG verified version for 2.1 & 2.2 is 8.2.6 Predict 4.6.1 is not dependent on the OS version, only on the version of Natural. Thank you for your time & assistance! Melissa Case ---
**Author:** ![system](https://global.discourse-cdn.com/techcommunity/original/3X/c/d/cd19967bb605d28a72d77eb83a1cae22f3df2eb8.svg) [@system](https://techcommunity.softwareag.com/u/system)\ **Post date:** [April 2, 2021, 3:42pm UTC](https://techcommunity.softwareag.com/t/old-versions-zos-2-2-compatibility-user-experiences/203410/2 "2021-04-02T15:42:34Z")