Moments after the initial drop in Korea, Samsung has now expanded the One UI 8.5 Beta 4 to the Galaxy S25 series in the US, Germany, UK, and India. The latest firmware update adds February 2026 security patch and Direct Voicemail feature.

For Galaxy S25 users, One UI 8.5 Beta 4 feels like a turning point. The software is settling down, the security patch is current, and Direct Voicemail (via TarunVats) finally brings Samsung’s calling experience up to par with its biggest rivals.

February 2026 security patch

Build ZZAL brings the February 2026 security patch to the Galaxy S25, S25+, and S25 Ultra. That’s the February 5, 2026, security level, for those tracking patch currency. The download weighs in at approximately 1.5 gigabytes, via AndroidFlatform.

Direct Voicemail

Direct Voicemail is the headline feature, offering real-time transcription of incoming voicemails with the ability to jump into the call mid-message. Think of it as Samsung’s version of Pixel’s call screening, except it happens after you’ve already declined the call.

The caller leaves their message. You read it as text, live, on your screen. If it’s important enough, you pick up and interrupt them. If it’s another spam call, let it finish and delete it. The implementation feels polished from early reports.

Image translated from Korean to English using Google Translate

What’s encouraging is the execution speed. One UI 8.5 development has moved faster than previous point releases, and the beta quality has been surprisingly stable. That suggests Samsung’s internal development processes are maturing.

If you’re on the beta, update now. If you’re waiting for stable, you won’t be waiting much longer.

Related article:

BREAKING: Galaxy S25 users get One UI 8.5 Beta 4 with major fixes

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