OnePlus' OxygenOS Open Betas give us an illuminating glimpse into the company's future software plans. Although it's possible that not every feature that makes it into the Open Betas will be deemed fit for stable release, they give us an advance look at the company's intentions, if nothing else. Today OnePlus has released a new pair of Open Betas for the OnePlus 5 and 5T, and the changes are quite substantial, including "Supported [sic] for Project Treble."
The full changelogs for Open Beta 13 (OP5) and Open Beta 11 (OP5T) are just below:
A brand new user interface
Supported accent color (Settings - Display - Customization)
Supported for Project Treble
Improved search tags in the app drawer
Added "New installs" category tag in the app drawer
Improved app list for hidden space and toolbox
Optimized logic for the contacts page
Brand new design with improved user experience
All forecasts integrated under a single interface leading to a fully immersive experience
OnePlus has issued a noteworthy warning about migration paths for this update as well:
Note: as this build supports project treble If you are not running open beta 12 for OnePlus 5 and open beta 10 OnePlus 5T make sure you flash this builds before updating, if not you should clear all data and cache from recovery before flashing the latest build.
At the time of writing, the update doesn't appear to be available for us on our varied OnePlus 5Ts via means such as Oxygen Updater. That isn't too surprising, as it sometimes takes a bit of time for these builds to start to trickle out. OnePlus occasionally announces them before they hit test markets. Unfortunately, it also means we can't flash it just yet for our own hands-on—something we're excited to do, given the substantial changes present.
There are a lot of UI-based improvements and tweaks stated, such as the redesign for OnePlus' weather app and a new UI for the system app (though we're not sure how that might manifest yet). And although visual changes like that are always entertaining, it's the addition of Project Treble that has us the most excited—if our tense-changing translation of the changelog's slightly broken English is correct.
This new Open Beta should still be based on Android 8.1, but the addition Treble support would be a big deal, especially considering OnePlus previously stated that its older devices, including the 5 and 5T, wouldn't be getting Treble support. As a technical consideration, it's also interesting that OnePlus was able to do it without repartitioning storage for the device. ASUS was able to add Treble support to one of its phones without adding a vendor partition, so it's possible OnePlus made a similar maneuver for the OnePlus 5 and 5T here.
If the addition of Treble support is accurate, it could mean even better ROM support—not that OnePlus' hardware needs any more help there, its products are already among the most popular devices in the root and ROM community.
If and when we get a chance to examine the visual changes present in this latest pair of Open Betas in more detail, we'll update this article with some comparisons. Until then, stable-channel OP5 and 5T users can dream sweet Treble dreams.