Changelog

Every update, newest first.

2026-08-17

Initial launch: school age calculator with exact age, grade level, kindergarten eligibility, and K–12 timeline.
Kindergarten cutoff dates for all 50 US states added to the reference table.
Support for Sep 1, Aug 1, Oct 1, Jan 1, Jul 1, and Dec 31 cutoff dates in the calculator dropdown.
Leap-year (Feb 29) birthday handling verified against edge cases.