New "revised" edition, to combine or not to combine?

[Lisa]

As a librarian I am unsure if a new edition ("FULLY REVISED AND EXPANDED") should be combined with previous editions. Author notes first was a novella (at 220 pages?) and now expanded, but based upon cover and page count that does not sound right.

https://www.goodreads.com/book/show/2...
https://www.goodreads.com/book/show/1...

Should they be merged?

[lethe]

I agree, a 220-page book is not a novella.

GR policy is generally to combine, depending on page count. I don't know how many pages the new book is going to have, if it's really going to be a lot more maybe they should stay separate.

[Z-squared]

My guess is they're going to be combined. Novella to novel usually isn't enough of a change. More like short story to novel. But as far as I know, there's no hard and fast rule for this.