It has been a long time since its release Linux Mint 20. Eventually the distribution development team published instructions for the update. The remarkable thing is that this time you can only upgrade the Mint 19,3 64-bit.
Users running the 32-bit distribution are not so lucky.
The cause of this changes is obvious, since the Linux Mint 20 βασίζεται στο Ubuntu 20.04 LTS, και τα δύο λειτουργικά συστήματα υπάρχουν μόνο σε εκδόσεις 64-bit. Το Linux Mint 19.3 είναι η τελευταία έκδοση που υποστηρίζει την αρχιτεκτονική 32-bit και η χρήση του θα είναι δυνατή μέχρι τον Απρίλιο του 2023.
If you are satisfied with the current installation of Linux Mint 19.3 and you don't need to upgrade to version 20 since you can safely use your current OS for a year or two.
Otherwise, you should take a look at the detailed guide below
How to upgrade to Linux Mint 20
The steps include a series of recommendations, e.g. to create a system snapshot with the TimeShift application. It also requires a new one to be installed packetuh, mintupgrade.
The other steps are standard and will be familiar to friends of the distribution.