We are pleased to announce the release of Pyomo 5.7.2.

Pyomo is a collection of Python software packages that supports a

diverse set of optimization capabilities for formulating and analyzing

optimization models.

The following are highlights of the 5.7 release series:

- Adding a logical expression system

- Standardizing component initialization

- Distribution of Cythonized wheels

- Reimplementation of the core Set component

- Improved direct and persistent interfaces to Xpress & MOSEK

- Adding support for Python 3.9

- Deprecating pyomo-extras

- Numerous bug fixes

A full list of updates and changes is available in the CHANGELOG.txt

ADVANCE CHANGE NOTICE:

- This is the last Pyomo release to support Python 2.7, 3.4, and 3.5

- This is the last Pyomo release to bundle PySP

- This is the last Pyomo release that will have a strict PyUtilib dependency

Enjoy!

- Pyomo Developer Team

- pyomo-developers@googlegroups.com

- https://www.pyomo.org

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About Pyomo

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The Pyomo home page provides resources for Pyomo users:

* https://www.pyomo.org

Pyomo development is hosted at GitHub:

* https://github.com/Pyomo

Get help at

* StackOverflow: https://stackoverflow.com/questions/tagged/pyomo

* Pyomo Forum: https://groups.google.com/group/pyomo-forum/