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Can I upgrade Ubuntu 19.04 to 19.10 directly or I have to do a fresh install?

I'm currently using Ubuntu 19.04 Disco Dingo in my Acer Predator Laptop. I heard that Ubuntu 19.10 Eoan Ermine stabled has been released now. Release Source: Ubuntu 19.10 Released & Ubuntu Releases

Eoan Ermine Releases

My question is about upgrading to Ubuntu 19.10 from Ubuntu 19.04 directly or I have to do a fresh installation?

Actually, you can directly upgrade your Ubuntu 19.04 to Ubuntu 19.10. Use the following command on the terminal.

sudo apt upgrade

If you are using Ubuntu 18.04 LTS or Ubuntu 18.10, then you cannot directly upgrade it to Ubuntu 19.10. In this case, you need to do a fresh install.