Operating systems

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The operating systems that CICS® Transaction Gateway supports.

CICS TG for Multiplatforms runs on:
  • IBM® AIX®
  • Linux® on Intel
  • Linux on POWER® (Little Endian)
  • Red Hat® Enterprise Linux (RHEL)
  • Linux on IBM Z®
  • Microsoft Windows

CICS TG for Multiplatforms and CICS TG Desktop Edition are supported only on 64-bit operating systems.

Note:
  • The 64-bit ncurses-lib (libncurses.so.5) Linux package is a prerequisite to start the Gateway daemon.
  • CICS TG uses libncurses v5. So, you must create softlinks to libncurses v5.
    • Create a softlink from libncurses.so.6 to libncurses.so.5.9:
      ln -s /lib64/libncurses.so.6 /lib64/libncurses.so.5.9
    • On RHEL 9, create a softlink from libncursesw.so.6.2 to both libncurses.so.5 and libtinfo.so.5:
      ln -s /lib64/libncursesw.so.6.2 /lib64/libncurses.so.5
      ln -s /lib64/libtinfo.so.6.2 /lib64/libtinfo.so.5
  • The 64-bit ncurses-lib (libncurses.so.6) Linux package is a prerequisite to start the Gateway daemon in IBM Linux on Power® LE.

Windows

  • Windows Server 2022: Standard Edition (including Small Business Server), Datacenter Edition
  • Windows 11 versions 22H2, 23H2, and 24H2: Professional and Enterprise Editions
  • Windows Server 2025: Standard Edition

IBM AIX

  • IBM AIX 7.2 TL5
  • IBM AIX 7.3 TL1 and later

Linux on Intel

  • Red Hat Enterprise Linux 8.10
  • Red Hat Enterprise Linux 8 compatible environments
  • Red Hat Enterprise Linux 9.5 and later
  • SuSE Linux Enterprise Server 15
  • Ubuntu 22.04
  • Ubuntu 24.04

Linux on POWER (Little Endian)

  • Red Hat Enterprise Linux 8.10
  • Red Hat Enterprise Linux 9.5 and later
  • SuSE Linux Enterprise Server 15

Linux on IBM Z

  • Red Hat Enterprise Linux 8.10
  • Red Hat Enterprise Linux 9.5 and later
  • SuSE Linux Enterprise Server 15
Note:
  • CICS Transaction Gateway is a 64-bit application.
  • The setting of multiple user interface languages on Windows server platforms is not supported.
  • Multiple concurrent users that use different user interface languages are not supported. This situation can occur when fast user switching is used.
  • All UNIX and Linux operating systems require the Korn shell to be installed before you install CICS Transaction Gateway.
  • CICS Transaction Gateway does not support Security-Enhanced Linux.
  • Red Hat Enterprise Linux compatible environments must be binary and source compatible with supported Red Hat Enterprise Linux versions that are listed earlier.