Because the product details text on the Amazon pages need updating to take the new release date into account for From Shattered Stars, minor corrections are being uploaded to the existing Kindle eBooks at the same time. The paperback editions will be updated with the new interior content, none of which is incredibly compelling.
List of the Dead / Books 1–3 Omnibus (Both rev. 1.08)
From Shattered Stars (Rev. 1.08)
The Kindle update policy has changed, and existing customers will not receive updates for such trivial changes. The new Kindle versions will be available to new customers tomorrow, with the paperbacks expected to be updated by the day after.
Additionally, it has been discovered that links to Createspace stores now simply redirect to Amazon. Createspace links have therefore been removed from this site. If you don't use Amazon, you can buy signed paperbacks on the official store.