> For the complete documentation index, see [llms.txt](https://research.ambitiousimpact.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://research.ambitiousimpact.com/ambitious-impact-eval/suffering-adjusted-days-methodology/sads-changelog.md).

# SADs Changelog

We were not keeping detailed changelogs on the methodology before v2.

## v.2 

* Decision to report by pain category and deprecate scaling. 
* Implementation of simple monte carlo system for uncertainty quantification. 
* Wholesale change to spreadsheet structure and migration to new template 
* Improvements to pain scaling by Sam Hilton, resulting in a tighter range of scaling factors. See [here](https://docs.google.com/document/d/1pCA7TQ8hRvA59DADueU-_yy4Yf9HWzYxWb1ALtb7e-0/edit?tab=t.1jst7dczvv1z#heading=h.z43i7gx33wag). 


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