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Iron Spring Software produces the Iron Spring PL/I compiler, the leading cross-platform PL/I compiler supporting both Linux and OS/2.

Recent News
21 Aug, 2012: The Programming Guide has been updated to correct and clarify the use of environment variables to supply a file name when opening a file.

21 Aug, 2012: The Linux version has been replaced by 0.9.3.1 to fix a bug which afffected programs linked by gcc.

15 Aug, 2012: PL/I beta version 0.9.3 released.
This version contains a limited version of CONTROLLED storage. Modifications are included to simplify running PL/I programs interactively, including the L format-item and the environment option INTERACTIVE. The OPEN statement will now recognize title strings of the form "DD_string" as pointers to an envionment variable "DD_string" whose value will be actual name of the file. The DO statement now allows multiple iteration specifications, such as DO i=1,3,5,7 TO 15; In addition this version includes numerous fixes dealing with adjustable arrays.
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