Starting with jquery 1.4, should I consider previous versions?

I have fair knowledge of Javascript, I started with jQuery 1.4 a week ago, and I went through some examples. It is very interesting to use it with my application. But I'm worried about whether I should care about previous versions? Should I know what are the disadvantages of the previous version?

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Always use the latest version.

Studying fixed bugs is interesting in older versions, although your time is probably better spent exploring and testing the current version features.

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Should I take care of previous versions?

You should be more specific, but you need to make sure that sites developed using previous versions work fine. Knowing the limitations of the previous version will help you find out how the best tool you have now in your hands. Now you have something better in your hands.

Should I know what are the disadvantages of the previous version?

Not necessarily, because the flaws are gone with the new version.

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Source: https://habr.com/ru/post/1738958/


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