Calibre 4.0.0 发布

Calibre 4.0.0 官方下载地址

https://download.calibre-ebook.com/4.0.0/calibre-4.0.0.dmg

https://www.fosshub.com/Calibre.html/calibre-4.0.0.dmg

https://github.com/kovidgoyal/calibre/releases/download/v4.0.0/calibre-4.0.0.dmg