Samsung has announced that it will provide security updates for its Galaxy phones at least four years after launch. That commitment dates back to phones released in 2019. It can therefore be relevant to a Samsung phone that you already own.
According to Samsung, more than 130 models released after 2019 are subject to regular security updates. These include the Galaxy S10, Galaxy S20 and Galaxy S21 series as well as the foldable smartphones from Samsung.
Note, however, that this only applies to security updates. So this does not guarantee that you will receive full software upgrades to Android 11 or Android 12. You may receive these updates for a few more years, but Samsung only commits to four years of security upgrades in this specific statement.
Samsung previously announced that it would be giving its smartphones three years of upgrades, and the company confirmed a list of compatible devices with this scheme as the Note 20 launch in August 2020.
These devices are not exactly the same list as this one …