OpenMDAO 3.x Documentation

Here you can find the documentation for the latest development version as well as recent releases of OpenMDAO.

Note that the latest development version is found on GitHub at https://github.com/OpenMDAO/OpenMDAO.

Installing via pypi will give you the most recent release.

• latest    

  Released on July 10, 2025

• 3.39.0    [Release Notes]

  Released on May 23, 2025

• 3.38.0    [Release Notes]

  Released on March 14, 2025

• 3.37.0    [Release Notes]

  Released on February 21, 2025

• 3.36.0    [Release Notes]

  Released on December 13, 2024

• 3.35.0    [Release Notes]

  Released on October 1, 2024

• 3.34.0    [Release Notes]

  Released on July 19, 2024

• 3.33.0    [Release Notes]

  Released on June 7, 2024

• 3.32.0    [Release Notes]

  Released on May 3, 2024

• 3.31.1    [Release Notes]

  Released on March 15, 2024

• 3.31.0    [Release Notes]

  Released on March 15, 2024

• 3.30.0    [Release Notes]

  Released on December 7, 2023

• 3.29.0    [Release Notes]

  Released on October 20, 2023

• 3.28.0    [Release Notes]

  Released on August 30, 2023

• 3.27.0    [Release Notes]

  Released on June 26, 2023

• 3.26.0    [Release Notes]

  Released on April 14, 2023

• 3.25.0    [Release Notes]

  Released on January 27, 2023

• 3.24.0    [Release Notes]

  Released on January 25, 2023

• 3.23.0    [Release Notes]

  Released on January 10, 2023

• 3.22.0    [Release Notes]

  Released on May 2, 2024

• 3.21.0    [Release Notes]

  Released on September 28, 2022

• 3.20.0    [Release Notes]

  Released on August 10, 2022

• 3.19.0    [Release Notes]

  Released on June 29, 2022

• 3.17.0    [Release Notes]

  Released on March 21, 2022

• 3.16.0    [Release Notes]

  Released on January 6, 2022

• 3.15.0    [Release Notes]

  Released on November 24, 2021

• 3.14.0    [Release Notes]

  Released on November 18, 2021

• 3.13.1    [Release Notes]

  Released on October 14, 2021

• 3.13.0    [Release Notes]

  Released on October 6, 2021

• 3.12.0    [Release Notes]

  Released on September 15, 2021

• 3.11.0    [Release Notes]

  Released on August 3, 2021

• 3.10.0    [Release Notes]

  Released on July 14, 2021

• 3.9.2    [Release Notes]

  Released on May 14, 2021

• 3.9.1    [Release Notes]

  Released on May 4, 2021

• 3.9.0    [Release Notes]

  Released on April 28, 2021

• 3.8.0    [Release Notes]

  Released on March 16, 2021

• 3.7.0    [Release Notes]

  Released on February 12, 2021

• 3.6.0    [Release Notes]

  Released on January 15, 2021

• 3.5.0    [Release Notes]

  Released on December 4, 2020

• 3.4.1    [Release Notes]

  Released on November 13, 2020

• 3.4.0    [Release Notes]

  Released on October 2, 2020

• 3.3.0    [Release Notes]

  Released on September 4, 2020

• 3.2.1    [Release Notes]

  Released on August 7, 2020

• 3.2.0    [Release Notes]

  Released on July 21, 2020

• 3.1.1    [Release Notes]

  Released on June 12, 2020

• 3.1.0    [Release Notes]

  Released on May 1, 2020

• 3.0.0    [Release Notes]

  Released on March 5, 2020