Samsung Begins Development of One UI 9.5 for Galaxy S26 Series

By: Harsh Vardhan

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Updated on: 12-Aug-2026 10:01 AM

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​Samsung has started developing One UI 9.5 for the Galaxy S26 series, according to recent reports. This news comes as the company prepares to release the fifth One UI 9 beta for the same lineup this week.

Key Highlights

• Samsung begins developing One UI 9.5 for the Galaxy S26 series.
• Fifth One UI 9 beta for Galaxy S26 scheduled for rollout this week.
• One UI 9.5 build version reportedly ends in CZH1 with no release date yet.
• Development of One UI 9.5 started earlier than previous One UI 8.5.

One UI 9 Beta Progress

Samsung released the first One UI 9 beta for the Galaxy S26 series in May. Since then, the company has continued to update the software, with the fifth beta version scheduled for rollout this week. Users of the Galaxy S26 series are currently waiting for both the latest beta and the stable version of One UI 9.

Development of One UI 9.5

Reports indicate that Samsung has already started work on One UI 9.5 for the Galaxy S26 series. The new build reportedly has a version number ending in CZH1. However, there is no official information about the release date for One UI 9.5 at this time.

Last year, Samsung began developing One UI 8.5 for the Galaxy S25 series around mid-September. The company officially announced that update in December. This year, Samsung appears to have started work on One UI 9.5 earlier than it did for the previous version. This could mean that One UI 9.5 may arrive sooner than One UI 8.5 did for the S25 series.

Expected Timeline and Updates

While Samsung has not confirmed a specific timeframe for the release of One UI 9.5, the early start in development suggests a possible earlier launch. The company’s focus remains on delivering the fifth One UI 9 beta and the stable update to Galaxy S26 users before shifting attention to the next version.

Samsung’s approach to software development for its flagship Galaxy S26 series shows a commitment to regular updates and improvements. Users can expect more information about One UI 9.5 as development progresses and official announcements are made.