PTF UK90013 for z/OS DFSORT V1R5 (July, 2008) provides important enhancements to DFSORT and DFSORT's ICETOOL for find and replace (FINDREP), group operations (WHEN=GROUP); sorting data between headers and trailers (DATASORT); keeping or removing the first n records, last n records and/or specific relative records (SUBSET); selecting the first n duplicate records (SELECT with FIRST(n) and FIRSTDUP(n)); splicing with non-blank fields (SPLICE with WITHANY); displaying and writing counts (DISPLAY with COUNT, EDCOUNT, BCOUNT and EDBCOUNT, and COUNT with ADD, SUB, WRITE, TEXT, DIGITS, EDCOUNT and WIDTH); reports with multiple and multipart titles (DISPLAY and OCCUR with TITLE, TLEFT and TFIRST); reports without carriage control characters (DISPLAY and OCCUR with NOCC); additional defaults (BLKSIZE for DUMMY, SKIP=0L for SECTIONS, and SORTOUT=ddname for FNAMES); easier migration from other sort products, and more.
For complete details on these new features, see my "User Guide for DFSORT PTF UK90013" paper (sortugpf.pdf) at:
It depends on what your shop is doing for the installation. The PTF is NOT part of the base for z/OS 1.9. So somebody has to install the PTF. It may be that when your shop installs z/OS 1.9, they will install all of the current PTFs, or they may be receiving a z/OS 1.9 system with all of the current PTFs included, or they may be installing just selected PTFs, or ? You could ask your System Programmer to ensure that it's installed in z/OS 1.9 one way or another.
Note that z/OS 1.10 (when available) will come with the July, 2008 DFSORT PTF already installed (it will be PTF UK90014 for z/OS DFSORT V1R10 and will be "rolled up" into z/OS 1.10).