Wait for new version or buy existing - Square Foot Gardening

[Littlemouse]

I am wondering whether the new Mel Bartholomew's All New Square Foot Gardening - Food Security for Everyone - is actually going to be much different from earlier editions, I assume it will have some preamble re future food security as per the amended title, but does anyone have a headsup on significant differences.

Just wondering whether to buy old edition now or wait until April.

(Not sure if worded clearly enough - have head stuffed full of cold.)

[oldie]

I was given a copy of his 2006 All New S.Q Foot Growing More in less Space by a relative at Christmas. I compared that with the original in the library. The main difference that I could see was he no longer has the complicated mixes using fertilizers, says you don't need them but still recommends a mix of compost and vermiculite. I will have a browse in the book shop when it comes out to see if there are any changes, I suspect they will be minor and with my cynical hat on wonder how much money making is involved.