One UI 8.5 Beta 4 changelog leaks, here's what's coming
- Posted on Jan. 20, 2026, 10 p.m.
Samsung One UI 8.5 Beta 4 Changelog Leaks: What's Coming to Galaxy S25 Series
Anticipation is building among Samsung Galaxy S25 series owners as the next iteration of the company's custom Android skin, One UI 8.5 Beta 4, gears up for release. While an official rollout is expected soon, an eagle-eyed tipster has already unveiled critical details, including the comprehensive changelog for this upcoming software update.
The leaked information specifies that the One UI 8.5 Beta 4 update for the Galaxy S25 will arrive with the firmware version ZZAB. This leak provides an early glimpse into the refinements and new functionalities users can look forward to from the latest One UI beta.
Key Enhancements and Bug Fixes in One UI 8.5 Beta 4
Among the most notable additions outlined in the leaked changelog is an updated Bixby. This enhanced version of Samsung's voice assistant has been a topic of discussion, having previously surfaced in a Reddit thread earlier in the month, hinting at its imminent integration within One UI.
Beyond new features, the Beta 4 update is poised to deliver crucial stability improvements by tackling several persistent bugs. Users can expect fixes for issues such as:
- Problems with search history within the native Phone app.
- Difficulties when attempting to paste phone numbers directly into the keypad.
- A specific fix for the functionality of the AI Select feature, ensuring smoother operation and a more reliable user experience.
Direct Voicemail Feature on the Horizon
Adding to the excitement, the same tipster also hinted at another significant feature. A separate test build, identified by firmware version ZZAD, is reported to include the highly anticipated Direct Voicemail feature. While not confirmed for this specific Beta 4 build (ZZAB), its appearance in a parallel test suggests it could be part of future One UI 8.5 updates or subsequent beta releases for the Galaxy S25.
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