[Reply by Jan 22] Aggregating PSL project updates, Dec 22 to Jan 22

  • Reporting period: Dec 22, 2020 to Jan 22, 2021
  • Reply by: Jan 22, 2021 (Fri)
  • Aggregated draft to be posted here by: Jan 24, 2021 (Sun)


This is a thread to aggregate project updates for the January 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!

Tax-Cruncher and Tax-Brain were used in Angela Rachidi’s blog post “Reducing the marriage penalty for low-income families.” Link.

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 Monday, 1/25/2021.


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

General announcements: