One UI 9.5 public beta could start as soon as this month

A first beta build of One UI 9.5 has already shown up on Samsung’s servers, and it’s raising hopes that the public beta could start before the end of November instead of the usual December timing.

The build in question is S948BXXU6ZZK3, made for the Galaxy S26 Ultra, and it was spotted on November 4. That’s more than three weeks earlier than the first One UI 8.5 beta firmware last year, which only appeared on November 25. Samsung eventually opened the One UI 8.5 public beta on December 8. With the new build surfacing this early, it looks like internal testing is further ahead this time, so there’s a realistic chance users could get invited sometime in the second half of November.

People have floated windows between roughly November 16 and 24, with a possible Monday start around November 23, though Samsung hasn’t confirmed anything yet. Just because a build is sitting on the servers doesn’t mean the public beta is right around the corner. The company still needs time for more testing, bug fixes, and prep work. Still, the early appearance is being seen as a good sign.

One UI 9.5 is expected to be based on Android 17 and should land in stable form alongside the Galaxy S27 series in early 2027. The beta phase usually kicks off with the current flagship S series (this year the S26 models) in a handful of markets like South Korea, the US, India, the UK, Germany, and Poland. Sign-ups typically happen through the Samsung Members app.

If development keeps moving at this pace, Galaxy owners who like getting early access to interface tweaks and new features could be in for a surprise. There’s a decent chance the first public One UI 9.5 builds arrive before December, giving everyone an early look at the mid-cycle update.