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Changelog

What's new

Every meaningful change, newest first. Something wrong or missing? Report an issue or request a topic.

October 2026

  • New: ML track — 12 beginner chapters on classical machine learning with scikit-learn.
  • New: Tool Showdowns — head-to-head comparisons (pandas vs Polars vs FireDucks, vector DBs, LLM APIs, frameworks, pgvector).
  • New: in-browser code playground — Python and JavaScript run locally, Java and Go via shared runner.
  • New: flashcards with a Daily 5 challenge, mock interviews with scoring rubric, XP levels, and printable certificates.
  • New: sign-in with GitHub (Google coming) — progress and notes sync across devices; guests keep everything locally.
  • New: sticky notes dock that follows you while you scroll, per-lesson quizzes, and listen-aloud mode.
  • Site renamed from an internal codename to SproutStack with a new sprout mark.

Browse the tracks →