Samsung expands stable Android 17 rollout across older Galaxy flagships and mid-tier handsets

Samsung is widening the release of its stable One UI 9 software, delivering Android 17 to older flagships and several mid-tier Galaxy devices. Following a rollout in South Korea roughly a week ago, the update for the Galaxy S23 series, Galaxy Z Fold 5, and Galaxy Z Flip 5 has expanded into Europe. Meanwhile, mid-range handsets including the Galaxy A55 and Galaxy A36 are also receiving the new build, with the A55 debut underway in South Korea and the A36 reaching European users after an initial domestic release. [1][2][3]

For Galaxy A36 owners, the over-the-air installation carries firmware version A366BXXUCDZIF, measures over 2.3GB, and bundles the September 2026 security patch. The update introduces Samsung's interface refinements, additional customization settings, and core Android 17 improvements. However, Android Central notes that the company's advanced Galaxy AI capabilities remain primarily restricted to premium devices, leaving more affordable phones without the full flagship feature set. [3]

The wave of software deployments extends across multiple other models, including the Galaxy A57, A56, A37, and A27, as Samsung steps up distribution beyond its home market. Further releases are expected soon, with 9to5Google anticipating an imminent launch for the S23 series in the United States and noting that the entry-level Galaxy A16 is nearing the conclusion of its beta testing phase. [2][3]