agile - Which are the Extreme Programming "core" practices? -

Recently, I started reading about agile practices and especially XP.

More accurate: Wikipedia reports 12 practices, which I consider to be some "classic" people.

Kent Beck and Ron Jefferies both 13 exercises (You can see the links below the Wikipedia page about "Extreme Programming Practice", I can not post them here since I am a new user of Stack Overflow) While reviewing Kent's Beck's "XP explained" (2nd edition) report more than 20 different practices

As a complete start up topic (and basically as a complete startup as a programmer), I want to be enlightened on the matter. My impression is that I should see Beck's book, since the second edition has been written after many years of experience, but I can get very little content on it.

In the first version of "XP explained", there were twelve practices

other versions In practice, the practices have been reorganized: some have been renamed or merged, some have been removed (metaphor), and now these are: thirteen primary and eleven result related practices.

Under the "First Edition Practices" topic in the page you mentioned, how can the basic list of twelve practices and how it appears in the update.

While reading, you will definitely isolate people from XP and XP2e (XP Second Edition).

It is likely that the first edition had four principles and the fifth (honor) was presented with the second edition.