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An open-source framework for efficient multidisciplinary optimization.

June 12, 2018
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OpenMDAO 2.3.0 Released!

We’re proud to announce the release of OpenMDAO 2.3.0. This is a substantial release that comes with many new features. Some of the new features are small, but there are are few major ones. You can read all the details … Continue reading

April 2, 2018
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OpenMDAO 2.2.1

OpenMDAO 2.2.1 came out today. Here are the release notes: Release Notes for OpenMDAO 2.2.1 April 2, 2018 New Features: ————– – check_partials() improvements to formatting and clarity. Report of potentially-bad derivatives summarized at bottom of output. – check_partials() only … Continue reading

February 9, 2018
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OpenMDAO 2.2.0 Released

OpenMDAO 2.2.0 was released today. Documentation for this version can be found here. If you have any trouble with the release, feel free to contact us for support via our Stack Overflow tag, “openmdao.” Release Notes for OpenMDAO 2.2.0 February … Continue reading

December 8, 2017
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Release of OpenMDAO 2.1.0

OpenMDAO 2.1.0 was released today. Documentation for this version can be found here. If you have any trouble with the release, feel free to contact us for support via our Stack Overflow tag, “openmdao.” Here are the release notes for … Continue reading

November 23, 2017
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Should I Use OpenMDAO 1 or 2?

OpenMDAO 2 represents a total re-write and significant update of the framework with much cleaner APIs and performance improvements. It is also a backwards-incompatible release, and does not yet (as of November 2017) include all of the features that were … Continue reading

October 23, 2017
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What’s New in 2.0

In October 2017, we released OpenMDAO 2.0 alpha. The 2.0 release of OpenMDAO has two important improvements to the code base: Cleaner, more self-consistent API Improved performance for models with lots of components and scalar variables A new API? The … Continue reading

October 20, 2017
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OpenMDAO 2.0.x

We here at OpenMDAO have been hard at work writing a completely new version of OpenMDAO. After 1.7.3, we started from a clean slate, and OpenMDAO 2.0.0 is now an all new alpha. OpenMDAO 2.0 is all about performance, especially … Continue reading

July 18, 2016
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OpenMDAO 1.7.1

OpenMDAO v1.7.1 is now available! Feel free to ask questions on our Stack Overflow tag if you experience any difficulties. Here are the release notes for 1.7.1: ________________________________________________________ OpenMDAO Version 1.7.1 Alpha Release Notes July 18, 2016 Features: * Newton … Continue reading

June 30, 2016
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OpenMDAO v1.7.0

OpenMDAO v1.7.0 is now available! Feel free to ask questions on our Stack Overflow tag if you experience any difficulties. Here are the release notes for 1.7.0: OpenMDAO Version 1.7.0 Alpha Release Notes June 30, 2016 Backwards-Incompatible Change: 1. ‘fd_options’ … Continue reading

May 10, 2016
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OpenMDAO v1.6.4

OpenMDAO v1.6.4 is now available! Feel free to ask questions on our Stack Overflow tag if you experience any difficulties. Here are the release notes for 1.6.4: OpenMDAO Version 1.6.4 Alpha Release Notes May 10, 2016 Features: * User can … Continue reading

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