Starting with Version 7.7, the FOCUS library structure is being modeled after the WebFOCUS paradigm so that a small number of libraries is being distributed. We recognize that the Mainframe FOCUS customer has a need to maintain continuity in the procedures used to run FOCUS. In order to ensure compatibility with the JCL (batch) and CLIST (TSO) procedures from prior FOCUS releases, FOCUS has implemented a new construct of physical and logical libraries. While the physical libraries have new names and functions, the logical libraries have the same names as the traditional FOCUS libraries so that the FOCUS startup procedures will be familiar to FOCUS users.

Because of the new construct that maps the logical (traditional) library names to the physical libraries actually distributed, it is no longer possible to run your own JCL procedures to install FOCUS 7.7. You must use the ISETUP procedure distributed with your current release of FOCUS in order to do the install. That is, the FOCUS 7.6 version of ISETUP will not work for installing FOCUS 7.7.03.

Note: Information about the new distribution library structure is being provided for the benefit of the FOCUS installer. End users should be able to interact with FOCUS using the traditional library names and have no need to know about the new structure.

Starting in FOCUS Version 7.6, the HLI module was removed and replaced by HLIH.

FOCUS 7.7 is an LE application. If an existing HLI program is not LE compliant, it must be made so. Once an HLI application is LE compliant, dynamic HLI programs run without change. Static HLI programs should be re-linked.

Starting in FOCUS Version 7.6, the SAS/C 6.5.0 link library was no longer distributed and should not be used. The IBM C compiler was used to create this release.