[Reply by May 23] Aggregating PSL project updates, Apr 23 to May 23

  • Reporting period: April 23, 2021 to May 23, 2021
  • Reply by: May 23, 2021 (Sun)
  • Aggregated draft to be posted here by: May 24, 2021 (Mon)


This is a thread to aggregate project updates for the May NumFOCUS and PSL newsletters. Please reply with developments pertinent to the projects you have worked on during the reporting period. Please include URLs where applicable.

Items to consider:

  1. New releases or features
  2. General updates
    • Recent achievements you’re most proud of
    • What are you working on? What’s coming up? Where do you need help?
    • Upcoming events
    • Job openings

Feel free to contact me with questions. Thanks!


  • New microsimulation interface
  • Significantly better derivative calculation
  • SPI (admin) dataset input supported fully
  • Microdata now generated and stored in-repo
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OpenFisca-UK also received its first citation, from a UBI Center report that simulated UBI policies in the UK with it.

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To keep the synergy with NumFOCUS newsletter schedule, we are shifting the send time of project updates to the middle of the month. If your project has any further updates since May 23, please provide them here by June 9 (Wednesday), and the updates will go out by this weekend. Going forward, we will aim for the middle of the month as well. Thank you.

Below are the aggregated updates for NumFOCUS newsletter. The aggregated updates for PSL newsletter are in this pull request.

Please reply with corrections or edits by noon on Friday, 6/11/2021.


The Policy Simulation Library (PSL) is a collection of open-source models and software for public-policy decisionmaking.

General announcements:

Please update OpenFisca-UK to: