@Norbert Thanks for the constructive answer! I'm glad you noticed that
there is no difference between using two-year-old PC and two-year-outdated
web framework!

More seriously: changes between RoR2 and RoR3 were quite significant, so
buying a book about RoR2 internals to use it with Rails3 was rather a bad
idea. I'm trying to learn if it's the same in this case.


2013/1/10 Norbert Melzer <timmelzer@gmail.com>


2013/1/10 Maciej Rząsa <maciejrzasa@gmail.com>
Do you think it's still reasonable to buy those books, knowing that RoR4
will be released soon? I'm especially interested in Crafting Rails
Applications, but I don't want to buy something that will be obsolete in a
couple of months.

Why did you buy a PC?
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