Hot fix A5F019 addresses the issue(s) in SAS Threaded Kernel Core Routines 9.4_M4 on z/OS 64-bit as documented in the Issue(s) Addressed section of the hot fix download page: https://tshf.sas.com/techsup/download/hotfix/HF2/A5F.html#A5F019 IMPORTANT NOTES 1. You must have SAS Threaded Kernel Core Routines 9.4_M4 installed on your system before applying this hot fix. Refer to Usage Note 35968 for instructions on how to determine which product releases you have installed. 2. All currently active SAS sessions, daemons, spawners and servers must be terminated before applying this hot fix. 3. The hot fix installer has a graphical user interface that requires the use of an X11 server. If an X11 server is not available at your site, the silent installation process described below may be used. 4. SAS Hot Fixes are installed into new datasets after which they can be promoted to your production libraries. Several new datasets will be created in this process. DOWNLOAD INSTRUCTIONS FTP A5F019z6.zip to a UNIX file system directory on z/OS 64-bit. This can be done in one of three ways: Option 1) Download hot fix A5F019z6.zip to your PC. When downloading a SAS 9.4 hot fix, you must choose to "save" the hot fix. After downloading the file to the PC, FTP the A5F019z6.zip file to your working directory in USS by issuing the following commands: NOTE: It is recommended to FTP the file(s) to the default USS directory <SASHOME>/InstallMisc/HotFixes/New. If this USS directory does not exist on your system, you should create it before beginning the FTP process. binary put A5F019z6.zip /<your_uss_directory>/A5F019z6.zip quit Option 2) From z/OS 64-bit, FTP to ftp.sas.com using userid=anonymous and password=your.email&address Once you are logged on, "cd" to the following directory: /techsup/download/hotfix/HF2/A/A5F/A5F019/xx/z64 Issue the following commands to place the ZIP file in your working directory in USS: binary get A5F019z6.zip /<your_uss_directory>/A5F019z6.zip quit Option 3) From z/OS 64-bit, submit a batch job to FTP to ftp.sas.com using using userid=anonymous and password=your.email&address See sample JCL: //FTPFIX EXEC PGM=FTP //SYSPRINT DD SYSOUT=D //FTPOUT DD SYSOUT=D //SYSIN DD * ftp.sas.com (exit anonymous your.email&address binary cd /techsup/download/hotfix/HF2/A/A5F/A5F019/xx/z64 get A5F019z6.zip /<your_uss_directory>/A5F019z6.zip (repl quit /* INSTALLATION INSTRUCTIONS The A5F019 hot fix for SAS Threaded Kernel Core Routines 9.4_M4 will be installed using the SAS Deployment Manager . By default, the SAS Deployment Manager will search in the <SASHOME>/InstallMisc/HotFixes/New directory for hot fixes to be applied, but will also prompt for a location if you have downloaded hot fixes to a different directory. After downloading A5F019z6.zip, follow the instructions for applying hot fixes in the SAS Deployment Wizard and SAS Deployment Manager 9.4: User's Guide. This completes the installation of hot fix A5F019 on z/OS 64-bit.