Calibre 5.0 released

Version 5.0 of theCalibre electronic-book manager has been released. "There has been alot of work on the calibre E-book viewer. It now supports Highlighting. Thehighlights can be colors, underlines, strikethrough, etc. and have addednotes. All highlights can be both stored in EPUB files for easy sharing andcentrally in the calibre library for easy browsing. Additionally, theE-book viewer now supports both vertical and right-to-left text."Another significant change is a port to Python 3; that was a necessarychange but it means that there are a number of plugins that have not yetbeen ported and thus won't work. The status of many plugins can be foundon thispage.