The landscape of Android software updates is often a study in anticipation and occasional frustration for power users, and Samsung Electronics is currently at the center of this dynamic as it prepares to broaden its latest software testing phase. Recent internal developments and digital breadcrumbs suggest that the South Korean technology giant is finally moving toward a significant expansion of its One UI 8.5 beta program. While the cutting-edge Galaxy S26 series has already transitioned to a stable release of this software, owners of last year’s flagship Galaxy S24 series and the current generation of foldable devices have been left waiting. However, new evidence indicates that this period of waiting is drawing to a close, as leaked internal builds and dedicated community forum pages have surfaced, signaling an imminent rollout for a wider range of high-end hardware.
According to prominent industry insider Tarun Vats, who frequently monitors Samsung’s firmware servers for changes in development status, specific build numbers and changelogs for the Galaxy S24 series and the Galaxy Z Fold 6 have been identified. For the Galaxy S24 Ultra, the first iteration of the One UI 8.5 beta is expected to carry the build label S928BXXU5ZZCD in various international markets. Similarly, the Galaxy Z Fold 6 is slated to receive a beta build identified as F956BXXU3ZZCD. These alpha-numeric strings are more than mere identifiers; the "ZZ" designation typically serves as a marker for internal testing or beta-specific firmware, confirming that the software has moved beyond the initial development phase and is being prepared for public or semi-public consumption via the Samsung Members application.
The scope of this expansion appears to be more ambitious than initially anticipated. Beyond the primary S24 flagship and the flagship Fold 6, evidence has emerged of One UI 8.5 forum pages being established for a broader spectrum of devices. This includes the Galaxy S24 FE (Fan Edition), the upcoming Galaxy Z Flip 6, and even the unreleased Galaxy S25 FE. The inclusion of the Galaxy S25 FE is particularly noteworthy, as it suggests that Samsung is already laying the software groundwork for its next-generation mid-range flagship, ensuring that it launches with or quickly receives the most current software features available to the more expensive models. This systemic preparation indicates that Samsung is attempting to synchronize its software experience across its entire premium and "sub-flagship" portfolio, even if the timeline has been slower than many enthusiasts would prefer.
The context of this rollout is critical to understanding the current sentiment among the Samsung user base. We are currently in an era where Android 17 has been available in the wider ecosystem for several months, yet Samsung’s transition to this version has been characterized by some critics as "slow as molasses." Traditionally, Samsung has been a leader in the speed and reliability of its software updates, often outpacing Google’s own Pixel devices in certain regional security patches. However, the One UI 8.5 cycle has proven to be an outlier. Currently, only the Galaxy S26 series enjoys the stability of a final release. Meanwhile, the Galaxy S25 series, along with the Galaxy Z Fold 7 and Flip 7, remain entrenched in the beta phase. In fact, the Galaxy S25 series has recently seen its eighth beta release, a high number that suggests Samsung is grappling with significant optimization challenges or is being exceptionally cautious about the stability of the final build.
The delay is likely attributed to the increasing complexity of the One UI ecosystem. As Samsung integrates more deeply with Google’s Gemini AI and expands its own suite of "Galaxy AI" features, the software overhead grows. One UI 8.5 is expected to be a feature-heavy update, serving as a bridge between the foundational changes of Android 17 and Samsung’s proprietary enhancements. For the Galaxy S24 series, this update is particularly significant. As the first generation of devices to be marketed heavily as "AI phones," the S24 lineup requires a seamless integration of new machine learning capabilities that were debuted with the S26. These features often include advanced photo editing tools, real-time translation refinements, and more intuitive system-wide search functions. Ensuring these features run efficiently on the Snapdragon 8 Gen 3 and Exynos 2400 chipsets—while maintaining battery life and thermal performance—is a monumental task for Samsung’s software engineers.
The leaked changelogs, while still subject to regional variations and final adjustments, point toward a focus on system fluidity and the refinement of the user interface. One UI 8.5 is expected to introduce smoother animations, a more cohesive design language for the quick settings panel, and enhanced customization options for the lock screen and Always-On Display. For foldable devices like the Galaxy Z Fold 6 and Z Flip 6, the update will likely include specific optimizations for large-screen multitasking and "Flex Mode" interactions. The goal is to make the transition between the cover screen and the internal main display even more seamless, reducing the latency that can sometimes occur when handoff happens between different display states.
Furthermore, the emergence of official forum pages on the Samsung Community site is a definitive precursor to a beta launch. These forums serve as the primary hub for beta testers to report bugs, suggest improvements, and interact with Samsung’s developers. When these pages go live, it typically precedes the "Join Beta" banner in the Samsung Members app by only a few days or weeks. This suggests that users in key markets—usually starting with South Korea, the United States, Germany, and India—should keep a close watch on their notifications. Participation in the beta program allows users to experience new features months before the general public, though it comes with the inherent risk of software instability, app crashes, and potential data loss.
The strategic importance of the Galaxy S24 series in this update cycle cannot be overstated. As Samsung’s current volume leader in the flagship space, the S24’s performance on One UI 8.5 will define the user experience for millions of customers. The fact that the S25 series is already on its eighth beta suggests that Samsung is taking no chances. The company is likely using the S25 beta as a "soak test" to identify core system bugs that would also affect the S24 and Fold 6, given the architectural similarities between the devices. By the time the beta reaches the S24 series, it should, in theory, be more stable than the early builds seen on the S25.
However, the pressure is on Samsung to accelerate this process. The mobile industry is moving at a breakneck pace, and competitors are narrowing the gap in terms of software support longevity and update speed. While Samsung has committed to an industry-leading seven years of OS updates for its flagship devices starting with the S24, that promise is only as good as the company’s ability to deliver those updates in a timely fashion. A "slow" rollout can lead to a fragmented user base where the latest features are locked behind newer hardware for longer than necessary, potentially alienating loyal customers who expect a premium software experience.
Looking ahead, the community hopes that the "slow as molasses" phase is nearing its conclusion. If the leaked information holds true, the expansion of the One UI 8.5 beta to the S24 series, Fold 6, and Flip 6 represents a massive influx of testing data for Samsung. This should, logically, lead to a faster path toward a stable release for all supported devices. The inclusion of the "Fan Edition" models in the leak also signals a more inclusive approach, ensuring that those who opted for Samsung’s value-oriented flagships are not left in the dark. As Samsung continues to allocate resources toward refining this build, the goal remains clear: to provide a cohesive, AI-driven, and ultra-stable Android 17 experience that justifies the premium price tag of the Galaxy brand. For now, S24 and Fold 6 owners should prepare their devices, back up their data, and wait for the invitation to shape the future of Samsung’s mobile interface.