PL/I - Group home

Normally, we only refresh the tech docs for the latest version ( the current one is V5R3 ). If you want to know more about the recent PTFs and APARs that refers to the previous versions, you can find them at https://www.ibm.com/support/home/search-results/M737228M40620P42/Enterprise_PL/I_for_z/OS?docOnly=true&sortby=-dcdate_sortrange&ct=rc