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BMDS Online Release History

Staying Connected

Please use our online form to report a bug, ask a support question, suggest an enhancement or improvement, or get notified of fixes and enhancements to BMDS.

BMDS Online release IDs reflect the year and month of release. A release ID of "2023.01" signifies that the update was released in January 2023.

On this page

  • 2025.1
  • 2024.1
  • 2023.03.1
  • 2023.03
  • 2022.10

2025.1

Released April 2025

All improvements and enhancements listed below are available in BMDS Online, BMDS Desktop, and pybmds:

  • Addition of the NCTR nested dichotomous model for developmental toxicity data
  • Addition of the Rao-Scott transformation tool
  • Ability to clone an analysis after clicking a Read-only link
  • Enhancements and under-the-hood fixes to improve efficiency, error handling, and stability for future development
  • Bug fixes
     

This interim release also rolls out an online version of the BMDS User Guide, replacing the previous PDF version.

2024.1

Released November 2024

The 2024 BMDS Online upgrade introduces two new products to the BMDS Suite of applications: 

  • BMDS Desktop is a Python-based version of BMDS Online that runs offline in a web browser and replaces the Excel-based BMDS 3.3. It is intended for users with increased data privacy or sensitivity concerns that prevent them from being able to run BMD analyses on EPA infrastructure.
  • pybmds enables users to run dose-response analyses in a scripting environment, along with running high-throughput or batch analyses of thousands of individual datasets. pybmds is a command-line application and is intended for the advanced user with some development experience.

The BMDS User Guide has been updated for the 2024 release and describes the key features and differences between the three products.  While the User Guide can serve as complete documentation for both the BMDS Online and BMDS Desktop interfaces, pybmds is a command-line application with its own online documentation. The online documentation also describes in detail how to install BMDS Desktop and pybmds.

All improvements and enhancements listed below are available in BMDS Online, BMDS Desktop, and pybmds:

  • Addition of Multistage Cancer/Multitumor model, along with a poly-k trend test
  • Addition of the Nested Logistic nested dichotomous model for developmental toxicity data
  • BMDS model source code is available via GitHub 
  • Enhancements and under-the-hood fixes to improve efficiency, error handling, and stability for future development

2023.03.1

Released March 2023

  • Fixed bug in dichotomous scaled residual calculations that occurred when estimated probability equals one.

2023.03

Released March 2023

  • Fixed bug in dichotomous scaled residual calculations. These calculations also affect the reported chi2 and overall p-value reported.
  • Fixed bug in reduced model deviance calculations. These calculations also affect the reduced model p-value reported.

2022.10

Released October 2022

  • Initial release of BMDS Online. 

Benchmark Dose Tools

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Last updated on May 9, 2025
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