Changelog
July 7, 2026Classroom

Course catalog, quizzes, and ranked stability

The course catalog now covers 30 CS courses, with database, operating systems, and data-structure quiz authoring filled out in tracked batches.

A live classroom coding surface with teacher controls and student work.
July 7, 2026: Course catalog, quizzes, and ranked stability.

New

  • The course catalog now covers 30 CS courses, with database, operating systems, and data-structure quiz authoring filled out in tracked batches.

Changed

  • Classroom and quiz media gained reusable crop controls so cover and branding images can be framed before upload.

Fixed

  • Ranked ELO finalization, abandonment handling, leaderboard visibility, and match-found notifications were hardened around server-authoritative writes.

Why it matters

  • Educators need live controls and reusable artifacts that make classroom progress visible without making the room noisy.

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