Update log
Material changes that affect learners.
- Current status
- Complete redesign release under integrated verification
- Document version
- 2026-07-30
2026-07-30 — Complete redesign
Added problem-first IUPAC practice, goal-based spectroscopy entry, course-based mechanism practice, separate Learn/Create home sections, per-trainer records, and light/dark themes.
Mechanism Studio redesign
Reduced the always-visible interface to core drawing tools: atoms, bonds, charges, arrows, text, deletion, and PNG export with background and DPI controls.
Data policy
Removed access analytics, consent banners, account sync, problem reporting, and material-information screens. Learning history and recovery data now follow a local-storage-only policy.
Glossary and quality assurance
Expanded the glossary to 45 detailed terms. Logic, core flows, responsive layouts, and PWA caching are verified before public cutover.