Changelog

What changed and when. Timestamps are Central Time.

v2.4.1

Sep 4, 2026 · 9:20 AM CT

Fixed timer drift on timed sets. Improved implicit differentiation problem generator.

v2.4.0

Aug 21, 2026 · 4:05 PM CT

AP Calculus BC (beta) for partner schools. Unit list matches the current College Board sequence; BC-only units are marked.

v2.3.2

Aug 6, 2026 · 11:40 AM CT

Accessibility fixes for screen readers on the answer input. The feedback area is now announced when it changes.

v2.3.1

Jul 24, 2026 · 2:15 PM CT

Class overview CSV export includes per-unit mastery. Fixed a rounding error in class averages.

v2.3.0

Jul 9, 2026 · 8:55 AM CT

Teachers can assign a set to more than one period at a time. Due dates now respect school time zone.

v2.2.4

Jun 18, 2026 · 1:30 PM CT

Corrected three Precalculus trig identity problems that accepted an equivalent form incorrectly. Thanks to the teacher who reported it.

Older entries are in the release notes archive. Write to hello@algebraloop.com if a fix you need is missing.