Samsung is currently making final preparations on its internal systems to roll out the official One UI 9.0 update for the Galaxy S26 series.

The move comes shortly after the South Korean tech giant released Beta 4 for its flagship lineup in key markets. By focusing on patching the final security vulnerabilities and optimizing overall performance, the Beta 4 rollout signals that the large-scale testing program is entering its final stretch.

The appearance of new firmware, carrying the build number BZG6 on internal servers, is the clearest indication yet that Samsung's engineering team is putting the finishing touches on the stable release. While the company may push a few minor beta updates for deeper fine-tuning, Galaxy S26 users have good reason to expect a smooth, official version to debut soon.

Following Samsung's annual roadmap, the next-generation foldable smartphones launching later this month will be the first devices to feature the new interface out of the box. Once these new foldables hit the shelves, the company is expected to shift its focus entirely to upgrading current flagships, with the Galaxy S26 series sitting firmly at the top of the priority list.

Industry insiders predict that Galaxy S26 users will begin receiving notifications for the stable One UI 9.0 update around August or September. This timeline could shift slightly depending on the results of the final bug-squashing phase, ensuring the most stable experience possible when the software reaches global users.