early edition; first print run
Refers to the early edition of a newspaper, or the first print run of a given day's issue. Often contrasted with 遅版 (late edition).
See also: 早版
The early edition of the morning paper arrived.
The first print run sometimes contains typos.
advance copy
A copy distributed before the official release, such as a preview or promotional copy. Less common than the newspaper sense.
They distributed advance copies of the new book to bookstores.
Compound of 早 (early) and 刷り (printing), from the verb 刷る (to print).