Samsung's Galaxy S21 series, including the S21, S21 Plus, and S21 Ultra, will now receive quarterly updates instead of monthly updates.

This will affect the Galaxy S21, S21+, and Galaxy S21 Ultra. But it will not have an effect on the Galaxy S21 FE, which was released a little later and is on a different schedule.

We’re now keeping our phones longer between upgrades, which is why the guaranteed minimum support periods are extending across the board. It is clear that this update decision from Samsung will affect millions of users, and while three-monthly updates is better than no updates, it doesn’t help when there’s an urgent fix mid-cycle.

In a move that we’re now seeing on a somewhat set schedule, Samsung’s Galaxy S21 series has been dropped to quarterly updates. With this, owners of the Galaxy S21, S21+, and S21 Ultra should no longer expect monthly security updates,

Apple’s newest high-end model, the iPhone 16 Pro Max is a direct competitor to the Samsung Galaxy S25 Ultra. The smartphone is powered by an A18 Pro chip

This change in update cadence will impact the standard Galaxy S21, S21 Plus, and Ultra models since they were. However, owners should note that the phones are still expected to re