Tools
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Free42 is a re-implementation of the HP-42S calculator and the HP-82240 printer.
It is a complete rewrite, not using any HP code, and it does not require an HP-42S ROM image.
Free42 is an Open Source project. The executables and source code are released under the terms of the GNU General Public License, version 2.
All third-party code used in Free42 is either in the public domain, or licensed under terms compatible with GPLv2, or used with the authors' permission.
From version Free42 2.5.7:
SOLVE would not always return the best function value in Z, or the second-best guess in Y. Fixed.

Changed haptic feedback preference setting to a four-level slider, to allow stronger feedback.

Reduced the GPS update interval for LOCAT from 60 seconds to 5 seconds.

Sharing an empty print-out would crash. Fixed; now it pops up a message instead.

Fixed crashes when importing state files from email attachments.
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September 18, 2019
September 11, 2019
July 12, 2019
July 4, 2019
July 1, 2019
June 25, 2019
June 25, 2019
May 20, 2019
May 19, 2019
May 11, 2019