IOF Release 8G

IOF Release 8G is the current release of IOF/TSO and IOF/CICS.   Release 8G with latest maintenance applied supports all  z/OS releases through z/OS V3R2.  Release 8G is the only IOF release that supports z/OS V2R3, V2R4, V2R5, V3R1 or V3R2.

The latest release of IOF is Release 8G. The latest spin level of  IOF Release 8G is 2026043 (February 12, 2026).

Applying all fixes on the latest CUMFIX maintenance for  release 8G adds support for V2R4, V2R5, V3R1 and V3R2..  It is probably easier to download and install the latest MPI file,

	Announcing  IOF Release 8G  Description of 8G Features
	Online Documentation
	Order Release 8G
	Download and Install IOF/TSO
	Download and Install IOF/CICS
	IOF  Maintenance Dialog
	Problem Resolution Center

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