This week, we focus on adding HTML Ingestion to Feather Tax Code Ingestion Engine and we released our Feather Android App.
Welcome back to our weekly changelog. From February 2nd to February 6th, 2026, we taught our Tax Code Ingestion Engine to RAG HTML content and released our Android app.
We've expanded how we feed tax code into our AI. The Tax Code Engine was originally built with PDF ingestion; on top of that we now also process tax data directly from HTML - so when the source is HTML we no longer convert to PDF first. For those HTML sources the payoff is better answers, far better citations, and much faster ingestion.
To stress-test the new workflow, we included eCFR in our Tax Knowledge Base, so the model gets richer structure and you get more precise, verifiable results.
Our Feather App is on the Google Play Store. You can access Feather's AI-powered tax research and answers directly from your Android device.
We implemented performance improvements to our API in response to some customers experiencing issues with folder deletion in Safe.
That's all for this week's changelog.
Product UpdatesDeterministic rule engines for California, Illinois, New York, and Virginia - 620 of 630 scored lines on TaxCalcBench, every gap a documented benchmark defect.
Product UpdatesA deterministic tax calculator built on a dedicated knowledge base and AI-generated rules - and how it went from 50% to 190/190 on TaxCalcBench.
Product Updates
Written by Sokratis Vidros
Published on February 6, 2026