At the 2018 Samsung Developer Conference, one of the big announcements was a big refresh for Samsung's custom Android interface. The Samsung Experience is gone, and in its place, we have One UI.

From understanding what in the world One UI is to seeing when you'll be able to get it on your phone, here's everything you need to know.

The latest One UI news

February 4, 2019 — AT&T Galaxy Note 9 receiving One UI/Pie update

If you have a Galaxy Note 9 on AT&T, today's your lucky day. According to some of our readers, the AT&T version of the Note 9 is now receiving its update to One UI/Android 9 Pie.

Just like with past One UI update, this brings Android Pie's new gesture navigations, upgraded notifications, Samsung's Viewing Area/Interaction Area user interface layout, and more.

Have you received the update yet?

January 23, 2019 — Second One UI beta rolling out to the Galaxy Note 8

Following the launch of the One UI beta for the Note 8 on January 15, Samsung has now begun pushing the second beta update to the phone.

As expected, this update squashes a lot of the bugs that were introduced with the beta earlier in the month. Some of the biggest bugs that have been resolved include microSD cards not being detected, screen freezing after entering a PIN to unlock the phone, and the camera app force closing when trying to use things like the slow motion video mode.

One bug that has not been fixed with the update is an issue where the People Edge feature causes the Note 8 to reboot. Right now, it seems like the best way to get around this is to simply disable People Edge until a fix is issued (likely in the next beta update).

January 16, 2019 — One UI/Android 9 Pie beta registration opens for Galaxy S8 and S8+

Just one day after the One UI beta opened for the Galaxy Note 8, it's now making its way to the Galaxy S8 and S8+.

It's reported that the beta is initially opening up in India and will expand to other countries in the coming days. After registering for the beta through the Samsung Members/Samsung+ app, you should receive a notification to download the new software.

Once it's downloaded, the firmware will be changed to G950FXXU4ZSA5 and G955FXXU4ZSA5 for the Galaxy S8 and S8+, respectively.

January 15, 2019 — One UI beta now available for the Galaxy Note 8

After pushing final One UI builds to the Galaxy S9 series and the Note 9, Samsung's now rolling out a beta of the new software to the Galaxy Note 8.

You can register for the beta in the Samsung Members/Samsung+ app right now, and when you get access to it, your Note 8's firmware will change to N950FXXU5ZSA5.

The One UI/Android 9 beta for the Note 8 has first been spotted in India and South Korea, but it should be making its way to other countries soon.

January 4, 2019 — Final Android Pie update rolling out to the Galaxy Note 9 in Germany

Well, that was fast.

Just two days after Samsung revealed that it was pushing the Note 9's Pie update up by a month, a user in Germany is reporting that they're already receiving the update as of today.

The update for this particular user weighed in at just 95MB, but that's because they were already part of the Android Pie beta. If you're not on the beta, you can expect a much larger file size.

It'll likely take a while for everyone in Germany to receive the update, and then even longer for the update to make its way to everyone around the globe. When you do get the update, however, it will have the firmware version of N960FXXU2CRLT and should come with the January 2019 security patch.

January 2, 2019 — Samsung pushes up its Android Pie update for the Note 9, Note 8, and others by a month

Samsung's One UI/Android Pie update is already available for the Galaxy S9 series, and if you have a Note 9, Note 8, or another Samsung-made device, you can expect Pie to arrive a month earlier than expected.

SamMobile recently came across an update roadmap highlighting Samsung's Pie plans for its other devices, and per the roadmap, Pie is now coming to the Note 9 in January rather than February and to the Note 8 in February instead of March.

Along with those two phones, Samsung's also moved up the Pie update by a month for the Galaxy J4, J6+, J7 Duo, A8 Star, and Tab S3 9.7.

December 11, 2018 — Galaxy Note 9 now being updated to One UI Beta 2

Following One UI Beta 2 rolling out to the Galaxy S9 and S9+, it would now appear that the second beta version is finally making its way to the Note 9.

Similar to Beta 2 for the S9 series, the main focus here is all about patching bugs. The update weighs in at 553.88MB and some of the issues that are now patched include the following:

Freezing of Dialer app
Sometimes Autofill function does not work when using Samsung Pass
Alarm does not work
Update error in Play Store or Galaxy Apps
Screen does not turn on when receiving/making calls

Also included here is the December 2018 Android security patch.

If you haven't already received the update, dive into the Note 9's settings and make your way to the section titled "Software update." It should be waiting for you there.

November 29, 2018 — One UI Beta 2 for Galaxy S9 fixes a laundry list of bugs

Bugs are bound to happen with any beta, and Samsung's One UI has been no exception to that. Beta 2 recently began making its way to unlocked Galaxy S9 handsets in the U.S., and the main focus with this 748.52MB update is squashing a huge list of bugs/glitches.

We won't go through every single one, but here are a few of the biggest bugs that are now squashed:

Swiping left or right does not work in Recent menu
Not able to log-in Samsung face, fingerprint recognition is not working
Alarm comes with vibration only
Alarm does not ring on scheduled time
Roar sound comes if a notification comes while listening to music
Impossible to join group call
Delay of displaying a screen with an incoming call
Rapid battery discharge during the Netflix streaming with Chromecast
Apps screen and app name is overlapped
Phonomon where multiple apps are closed

You can check out the entire changelog here, and in addition to all the bug fixes, Beta 2 also adds the November 1, 2018 Android security patch.

All the big details

What exactly is One UI?

One UI is the name of Samsung's new Android interface and serves as the successor to The Samsung Experience that previously replaced TouchWiz.

One of the biggest goals with One UI is to help users "focus on the task at hand." To achieve this, One UI removes a lot of clutter from the Samsung Experience and makes things much cleaner. For example, the settings page is being simplified even more and regrouping certain settings together so that they're easier to get to. The phone, notes, email, and other Samsung apps also have a new look to only show essential information.

Samsung's also marketing One UI as being more natural, saying that it's "restructured the way we interact with our devices." Buttons that are traditionally towards the top of the screen have been moved closer to the bottom, and in many of Samsung's apps (such as Messages and Clock), the top area is reserved exclusively for viewing content you don't have to interact with.

Third, One UI aims to "be visibly comfortable." Colors have been tweaked to provide better clarity, and based on the color of the phone you have, elements of the UI will be tweaked to match it.

Samsung One UI (Android 9 Pie) review: Samsung's best software yet

What Android version is it based on?

One UI is based on Android 9 Pie, and as such, has all of the features from Pie that we've come to know and love.

That means One UI has some new gesture navigation options, a bunch of new emoji, improved notifications, and more on top of all of the One UI-specific changes.

What phones will be updated to One UI?

So far, Samsung's confirmed that the following phones will be updated to One UI:

Galaxy Note 9
Galaxy S9
Galaxy S9+
Galaxy Note 8
Galaxy S8
Galaxy S8+

When can I get it?

Samsung started rolling out a beta version of the One UI and Android 9 Pie update to the Galaxy S9, S9+ and Note 9 at the end of 2018. Starting in January, Samsung began to roll out the official update to users in specific countries in small numbers. The official update will hit a broader range of devices throughout February and early March, starting with the latest devices (Note 9, S9, S9+) and eventually hitting the last-gen devices (Note 8, S8, S8+) thereafter.

How to get Android 9 Pie and One UI on your Samsung Galaxy S9