What is new in Version 1.68:

For HTML-based formats, nested lists can now be of different types without starting a new list (which could cause numbering problems).
Fixed list indentation for Kindle since behaviour appears to have got closer to Epub layout.
Fixed a bug in Epub/HTML import where the cover design name was not set if an image was selected for the cover.
Fixed a URL import bug in Epub/HTML import.
Fixed a bug whereby splitting the document manually copied the user-supplied file name for the original section to the new section, causing ebook generation problems later.
Fixed subscript and superscript font size when the current paragraph has a font size other than the default.
Added a warning about tabs.
Added a warning about the first item in a navmap needing a bookmark (to work around a Kindle navigation bug).
Added "Character style substitutions" configuration option.
Jutoh now sets the "toc" guide type during advanced TOC building if finding an existing TOC page that doesn't have it set.
Changed the Cover Design new/reimport project wizard page to allow switching between new and existing cover designs, with the user-provided setting always being used in future reimports.
Jutoh scripts: added EAN, metadata_identifier and metadata_source variables.
Jutoh scripts: can now use $EMPTY$ as replacement value to specify the empty string.
Jutoh scripts: added "in-section" parameter to search operations to restrict matching to one or more sections (using wildcards).
Jutoh scripts: added the ability to specify "first-section" and "last-section" when inserting a new section.
Jutoh scripts: added the ability to specify cover images when opening a project, and not just when importing a file.
Jutoh scripts: fixed a bug in string table property setting.
Jutoh scripts: added "globalstrings" context identifier in addition to the project-specific "strings".
Jutoh scripts: if a string table referenced by a string table property command is not found, it is created.
For Epub 3 generation, the navigation document is no longer in included in the spine.
Fixed a problem parsing kindlegen's output when finding version, since Amazon changed the output slightly.
Improved the appearance of the Document page in Project Properties, and added Load XML and Save XML buttons.
Added an experimental advanced Find and Replace dialog that replaces the current one if you enable Preferences/Advanced/Use advanced find dialog.