An upgrade ussually takes 45min to 1 hour sometimes longer. Depends on your connection ect.

How long does it take to update Kali Linux?

It took about 10 mins. I installed it in a pretty powerful computer so if you are going to install it in old hardware it may take a bit longer “~20 mins”. You can download Kali Linux latest official release here → Kali Linux Downloads .

How long do release upgrades take?

I would just not recommend running the do-release-upgrade command via SSH. Show activity on this post. It depends on your computer. With a fast computer it should take about 1 hour – 1 hour and 30 minutes.