IBM is killing off a mainframe coding toolkit for PCs and withdrawing all support, directing developers to instead use a cloud-hosted environment for dev and test purposes.

In a notice issued on September 30, Big Blue informed customers that it will cease marketing the System z Personal Development Tool (zPDT) as a standalone offering, effective from December 31 this year. Support for the product will be discontinued a year later, on December 31, 2026.

The IBM zPDT emulates one or more System z processors, the CPUs used in IBM Z mainframes, on a PC running Linux. This provides a small System z instance capable of running currently supported operating systems, with emulation of selected System z I/O devices and control units.

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