Why is iBooks Author 2.6 not discussed?

Y'all are paranoid and just not looking hard enough. Just go to to the Mac App Store Preview for iBooks Author.

Click on Version History.

-- Version History --

2.6 Sep 25, 2017

• Add images and videos from the Photos app using the Media Browser or drag and drop

• Support for wide color gamut images

• Performance and stability improvements

2.5 Sep 20, 2016

• New templates for creating interactive ePub books

• Support for publishing to iBooks using an Apple ID with two-factor authentication enabled

• Improved workflow when publishing books on behalf of multiple sellers

• Performance and stability improvements

2.4.1 Mar 29, 2016

• Security updates

2.4S ep 30, 2015

• ePub templates now support the Pop-Over widget

• Minor usability improvements to the ePub templates

2.3 Jun 30, 2015

• iBooks for iPhone now supports books made with iBooks Author

• Create Multi-Touch books using new ePub templates

2.2 Oct 16, 2014

• Import ePub files

• Import Adobe InDesign IDML files

• Create customized books with new Blank templates

• New hyperlink options: link to a location in another book, link from an image, and more

• Improved transition support in Keynote widget

• Enable auto-play for media widget, Keynote widget, and HTML widget

• Readers can now interact with the HTML widget right on a book page

2.1.3 Jun 17, 2014

This update contains stability improvements and bug fixes.

2.1.2 Jun 11, 2014

This update contains stability improvements and bug fixes.

2.1.1 Oct 30, 2013

This version of iBooks Author resolves an issue where custom fonts may not properly display.

2.1Oct 22, 2013

• Preview books in iBooks for Mac

• Addresses an issue that removed enhanced caption tracks from some movies

• Includes various bug fixes and performance improvements

And with the new release of iBooks for Mac, books made with iBooks Author can now be read on the Mac.

2.0 Oct 23, 2012

• Create new gorgeous portrait-only books

• Embed custom fonts into books for complete control over text appearance

• Add even more interactivity with new Scrolling Sidebar and Pop-Over widgets

• Support for mathematical expressions with new native equation editing using both LaTeX and MathML notation

• Automatic optimization of media for iPad

• Improved support for embedded audio, including the ability to play an audio file by tapping an image

• Improved publishing workflow, including automatic sample book creation and pre-publish checking

• Additional Apple-designed templates

• Version numbering for books

• Enhanced to take advantage of the Retina display on the new MacBook Pro

• Performance improvements

• Usability improvements

1.1 Mar 7, 2012

• iBooks Author 1.1 is enhanced to create books that take advantage of the Retina display on the new iPad

• Includes performance and stability improvements

1.0.1 Feb 3, 2012

This release provides an updated version of the End User License Agreement.

1.0 Jan 18, 2012

You can also submit feedback asking to update the documentation.

I personally think its pretty awesome software for free. Same with Pages if you want to make EPUBs that are Fixed or Reflow. Doesn't have all the widgets, but pick the right tool for the job, or go pay for an alternative, and pay for the add-ons you'd need to make an EPUB from another platform have the same capability as all the widgets that are provided by default in iBooks Author.

You can give apple your views on that and ask them to update the doc via

http://www.apple.com/feedback

Hard to see lack of interest given the frequency of updates. Presumably there will be 2.7 in a month or two.

From the app store:

From another site: