Overview
- Samsung’s February 2026 supported-device list omits the Galaxy S21, S21+, and S21 Ultra, ending routine security and OS updates except for possible critical hotfixes.
- The Galaxy S21 series received its final major upgrade to Android 15 with One UI 7.0 in the first half of 2025, and its last regular security patch in November 2025.
- The Galaxy S22, S22+, and S22 Ultra have been downgraded from monthly to quarterly security patches, entering their final year of support with cutoff expected in 2027.
- Samsung’s February 2026 security bulletin outlines 37 vulnerability fixes in total, including 25 from Google and 12 from Samsung.
- Recent Samsung flagships now carry seven years of OS upgrades and security patches, contrasting with the fulfilled five-year commitment for the S21 lineup.