Amazon Family Library lets members of your household share books, movies, and music across devices. If you buy a song with your Amazon account your spouse can listen to that tune on a Fire tablet with a linked account.
Now Family Library is available for the latest Kindle eReaders, letting you share eBooks across two linked Amazon accounts.
Another new feature is support Kindle FreeTime Unlimited, which lets subscribers pay a $2.99 per mnoth in order to access thousands of eBooks for children between the ages of 3 and 8. It’s sort of a Netflix-for-kid’s books.
If you want to use FreeTime Unlimited it looks like you may need a Kindle Voyage or Paperwhite — the feature isn’t mentioned in the software release notes for the cheaper 7th-gen Kindle.
The latest software also offers Word Wise definitions and synonyms above difficult words while you read (which can come in handy for kids or folks learning English), and improvements for X-Ray, Goodreads, and periodicals.
Amazon introduced FreeTime Unlimited along with the Fire HD Kids Edition tablet in September, and unveiled Family Library as an upcoming feature for phones and tablets running Fire OS 4 at the same time.
Kindle owners will get the new features via an over-the-air software update in the coming weeks, or they can visit the Kindle Software Update page for instructions on downloading and installing the latest software manually.