https://pypi.org/project/nss-engine/ Recent updates to the Python Package Index for nss-engine en https://pypi.org/project/nss-engine/2.5.1/ U.S. Treasury yield curve engine: Nelson-Siegel-Svensson fits since 1990, a survey-anchored term premium, breakeven inflation, recession signals and forecasts, all tested out of sample. Fri, 02 Oct 2026 03:26:30 GMT https://pypi.org/project/nss-engine/2.5.0/ U.S. Treasury yield curve engine: Nelson-Siegel-Svensson fits since 1990, a survey-anchored term premium, breakeven inflation, recession signals and forecasts, all tested out of sample. Fri, 02 Oct 2026 02:02:45 GMT