2. You get constant updates to the book (errata and such) New editions? On a related note: I know this is ridiculous but I wish I could purchase book diffs up

2. You get constant updates to the book (errata and such) New editions? On a related note: I know this is ridiculous but I wish I could purchase book diffs upon the release of a new edition. I already read the second edition of CLRS and paid $60 for it. Now I just want the new bits of the 3rd edition at a reasonable price.