Welcome back, caliber users. It has been two years since caliber 3.0. This time has been spent mostly in making the caliber Content server ever more capable as well as migrating caliber itself fromQt WebKittoQt WebEngine, because the former is no longer maintained.
The Content server has gained the ability toEdit metadata,Add / remove booksand evenConvert booksto and from all the formats caliber itself supports. It is now a full fledged interface to your caliber libraries.
The change to useQt WebEnginehas entailed a complete rewrite of various parts of caliber, including theE-book Viewer,PDF Output, Book detailsetc. Every attempt has been made to preserve features and functionality in a backwards compatible way, see below for a list of some known incompatibilities.
- The new Content server capabilities
The server has gained all the major capabilities of the main caliber interface. You can now edit metadata, convert books, and add / remove books and formats just as is possible with caliber itself. To see a brief tutorial describing how to access these features via the server interface, click here.
- All new E-book viewer
The caliber builtin E-book viewer has been completely rewritten. The new design emphasizes the book text, with no visible controls. The viewer now also shares a codebase with the in-browser viewer which will make developing new features such as the upcoming support for annotations much easier.
- Backwards incompatibilities
There are a few minor backwards incompatibilities to be aware of in caliber 4, because of the replacement ofQt WebKitwithQt WebEngine.
- The Book details panel now no longer uses a full browser engine for rendering. This makes it faster and less resource intensive, however it supports less HTML and CSS, which means if you used advanced styling in your comments it may not fully work. Seehere for the supported HTML subset.
- The markup needed for header and footer templates when converting to PDF has changed. Seethe manualfor details.
This is an appropriate time to throw out a big thank you to the caliber community who have contributed selflessly of their energy and enthusiasm – without which many of the features above would never have seen the light of day.
Note that some of these features were actually introduced during the lifetime of the 3.x series. This document describes new features as compared to 3.0
See what was new in previous major caliber releases:3.0,2.0,1.0,0.9,0.8,0.7.
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