Thinkphp study should be based on which version to learn

Thinkphp study should be based on which version to learn
Thinkphp now the version is 3.2.2, but the official is the tutorial really 3.1 of the tutorial, the directory of things changed a lot, but look at the development manual a little touch the clue, I myself imitate wrote Smarty,
1, I should directly learn 3.2.2 or first in accordance with 3.1 of the tutorial learned to study 3.2,
2, watching the video is not very time-consuming, the individual do not want to watch the video, feel good long,
Hope to give some advice.

------to solve the idea----------------------
If the job is needed, see what the team is using.
If you are learning, it is recommended to learn the latest version. It's only a matter of time before the old version is retired.

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