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In this lesson, we are going to learn about updating packages.

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So why do we need to update packages?

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There could be possible many reasons to it.

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There is a new version of that specific package with added features.

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Or was there any bug or any security issue that was fixed?

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So we should always keep our packages updated to the latest version.

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Now we are going to update the packages and also going to update our repositories.

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So when we run the command app update, what does it do?

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It basically updates the repo first, which is the source dot list file, then it checks.

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What are the new versions available for the installed packages in your system?

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So it's a practical time and let's see how to practically use this command.

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So I'm onto my terminal and I'm going to use the command apt update when I do this, the first thing

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that is going to happen is it is going to update all the sources start list file that is being added

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in my system to verify if there are any new updates for any packages that are currently installed.

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In my system.

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As you can see, it is send a request to Google Sublime Text, Protonvpn, etc. and the default sources

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not list package repository of Kali Linux.

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It is fetch the data from here and you can see the result which is 332 packages can be upgraded here.

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We can confirm that there are new versions for already installed packages in our system.

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Let's run the command once more and here you can see this time it has only sent request to these new

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sources dot list to verify if there are any available packages because it has already verified any new

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updates from the official repo of Kali.

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Here we can confirm that there are 332 packages and if you want you can update those packages to the

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latest version.

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Thank you.