It's been over a month since Microsoft released a new Windows 10 Mobile Insider Preview for its upcoming Creators Update. The last Fast ring preview for phones, build 14977, rolled out on December 1, but while builds 14986 and 15002 have since been made available to PCs, Mobile users have been impatiently awaiting the arrival of a new preview for their devices.
Unexpectedly, Windows 10 Mobile build 14998 began making its way to users a few hours ago - but all is not as it seems. The update appeared on Fast ring handsets, but didn't clearly identify itself as a new Mobile build, referring only to a 'Localization for English' update.
It appears that the rollout of build 14998 was unintentional, particularly as Microsoft has made no announcements regarding the release. Given that Insider Previews tend to come with various known issues that users need to be aware of before installing them, the absence of any release notes is a strong indicator that the build 14998 rollout was not deliberate.
Installing updates not intended for general release is a risky business, as Microsoft carefully optimizes its public OS delivery systems to transition from each approved build to the next. As we've seen in the past, particularly when users have installed builds that have leaked online, installing builds that fall outside of its general release program can result in problems with migrating to newer official releases.
As Windows Central's Zac Bowden noted, some users have already reported serious issues with their devices after installing build 14998 today, so if you're not prepared to deal with the risk of such problems on your handset - and the prospect of potentially having to wipe/recover your device to install future builds - it's probably best that you avoid installing the so-called 'Localization for English' update today.
Source: Windows Central