The update includes an "improved" font that Amazon says is "higher contrast and crisper" for a better reading experience. Also new are parental controls for restricting access to features like the Web browser, archived items, and the Kindle Store.

The software update also brings support for new book types: Books with complex layouts, books using Kindle Format 8, children's books with Kindle Text Pop-Up, and comic books with Kindle Panel View will all work with the 4.1.0 update installed.

Rounding out the updates are better dictionary organization and improved table and image viewing (with panning and zooming) on support titles.