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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

15 Aug, 2025: Iron Spring PL/I preprocessor version 0.2.0 released
This version fixes a bug in the lexical scanner that caused the preprocessor to drop text following blank lines. The preprocessor now accepts bit constants, as well as hexadecimal character and additional types of numeric constants.
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