Just tried the new version.
Some things I noticed:
Target SDK bumped to API 28 (needed to push to Google play store). Still relying on shared storage, no SAF compatible.
They implemented a file provider. That means that CC now ships a hard copy of the book to the reader application. (ie: in MoonReader the book will be copied to attachments even when both apps have permissions to read the same shared storage). Some apps, like Coolreader and KOReader, are still able to circumvent this limitation and retrieve the book without making a copy.
Now CC will properly download books to the primary storage even if the primary storage is a sdcard.
Congratulations. You didn't break the software yet
