I did not do any edits but some users did. I am not sure about the entity of the changes because I have not reviewed them.
On Friday, 3 August 2012 00:24:39 UTC-5, Andrew wrote: > > Hi Massimo, > The 4th edition book has been on the web for a while. Just wondering if > there have been any incremental updates to the online version, while it is > still called "4th edition" ? > --