It's available on the download page now too with this description:
1. Field issues
* Connection fail if the key(password) includes "00" strings.
* Connection fail if the password includes some space.
* Connection fail if the password over 32 characters.
(2) Scofield Bible (121MB) download fail issue fixed.
(3) Over 50MB file is downloadable now,
but if user space is less than 100MB, then
"Insufficient Memory" message will popup, and download will be terminated.
(4) EPUB png 2/4 bit rendering issue fixed.
2. Newly added functions:
(1) EPUB link function added.
You can test it with attached epub - "The Wonderful Wizard of Oz"
(2) Search in EPUB/PDF function added
* Option -> search
(3) Enlarge font size at EPUB
There doesn't seem to be an update for the basic (non-wifi) version available yet, at least the epub changes I guess should go in there too. I hope they will support both versions of their reader device equally...