Program temporary fix
(PTF) is the standard IBM locution
to designate single bug fix
, or group of fixes, distributed in a form ready to install for customers. Often explained in tongue-in-cheek manner as permanent temporary fix
or more practically probably this fixes
These repairs to IBM software were often in response to APARs (Authorised Program Analysis Reports) submitted by customers and others and acted on by IBM. It was generally expected by the customer that the problem would be fully corrected in the next release (version) of the relevant product.
IBM Authorized Program Analysis Report