Microsoft's planned OneDrive cutoff leaves four older iPhone and iPad models on frozen builds

On a seventh-generation iPad still running iPadOS 18, the OneDrive listing in the App Store tells the owner to move to a newer operating system ^[2]. Apple's iPadOS 26 eligibility list starts at the eighth generation ^[7].

The notice pitches an upgrade. So far, Microsoft has committed only to freezing new releases for devices that stay behind ^[1][4]. Its published system requirements still list iOS 18 as the minimum ^[5], and according to TechRepublic it has not announced any interruption to existing backups or file access ^[11].

Teams can estimate the timing. When Microsoft dropped iOS 17, the release that raised the minimum arrived 14 days after the final compatible build ^[14]. If Microsoft follows that precedent, a team that waits for the last iOS 18 build before planning may have about two weeks before newer releases stop installing on its older devices.

Photo uploads get most of the attention. Sign-in needs testing too. TechRepublic warns that future authentication changes could interfere with an outdated app, and suggests testing OneDrive's browser interface and confirming that essential files open on another supported device ^[13]. On company-managed hardware, it adds, that fallback route has to comply with workplace policy ^[13].

I'd move every iOS 18 device that can take iOS 26 now ^[9], and treat the four excluded models as a file-access problem before treating them as a purchase. The tradeoff is that a kept iPhone XS or seventh-generation iPad runs a OneDrive build that gets no further releases, including any fix Microsoft ships for sign-in ^[4][13].

To sort a fleet, place each device on two lines: whether it can run iOS 26 or iPadOS 26 ^[7], and whether its job depends on the OneDrive app itself, mainly Camera Upload, or can be done in a browser. Put upgradable, app-dependent devices first in the iOS 26 rollout. Upgradable devices used through a browser can follow on the normal schedule. For a stuck device that uploads photos, budget a replacement and, as TechRepublic suggests, add a separate cloud backup for anything the team cannot afford to lose ^[12]. A stuck device used only to read documents can stay in service, provided browser sign-in works, until Microsoft names a date ^[2].