更 means further; to change and is a JLPT N3 kanji. It has 7 strokes and uses the to say radical (曰).
Stroke order · 7 strokes
On'yomi (音読み)
コウ
Kun'yomi (訓読み)
さら、ふ(ける)
Radical
曰 · to say
Strokes
7
How to remember 更
Even after the sun sets, a new start begins again — another day after the night passes. 更新 (renewal) — the day of visa 更新 keeps foreigners up at night.