Update Impracticality: The extensive pre-processing for CH makes it unsuitable for frequent updates, let alone OsmAnd’s goal of supporting near real-time changes through hourly map updates.
Олег Давыдов (Редактор отдела «Интернет и СМИ»)
，这一点在Line官方版本下载中也有详细论述
Each block in the chain has an exact timestamp and can't be changed.
Instant notifications.