fjd wrote on 08/05/19 at 18:19:42:
I haven't done much comparing with the older edition, but from what I understand the changes are mostly with analysis, and not wholesale repertoire recommendation changes.
This is my impression too. I had the original edition and recently I bought this new one in app edition. Maybe I was just unlucky, but in both the parts I needed it for (to look at with a student), I got the feeling it really would have been better to switch lines entirely:
In the 4.Qxd4 Sicilian the main line ends up in calm positions where White's attack has dried up and to my eyes White seriously risks being worse. One obvious solution would have been to add coverage of the setups where White tries to get in c4 with a Maroczy Bind type position, but that's not mentioned. While in the French Two Knights' main line I had some hopes the main line with 0-0-0 would be added since the 0-0 and Ne5 lines don't seem to trouble Black very much. But no such luck... And in the 9...Qxf6 line he doesn't mention Black's plan of ...Qh6 and ...Nf6-h5 that I picked up from Neil McDonald's decade-old book
How to Play Against 1 e4.
But there surely are good parts of the book too. I intend to take a closer look at the 1...e5, French, Caro-Kann and Rossolimo chapters and maybe use the lines occasionally.
In the 1...e5 part, the expansion of the note on 8.fxg7!? in the Max Lange Attack shows that some real work has gone into this new edition. The Anti-Max Lange being so drawish is a shame (from a White point of view), but Burgess gives it a good try and I don't think you'll find better attempts to keep some complexity anywhere else.