The latest Anniversary update cumulative update release Build is the Build 14393.321. It has been released to both insiders and non-insiders in Release Preview ring. Microsoft may now release next Anniversary update build to non-insiders on November 8 but testing of newer builds will continue.

We last reported about sightings of a new build, the Windows 10 Mobile / PC Build 14393.349. Now a newer Anniversary update CU build has appeared on the site BuildFeed that tracks internal builds under testing at Microsoft. The Build in question is Build 14393.351 and has been compiled on October 14. So, it has been under testing already for 4-5 days.


As the jump in Build number suggests (Build 14393.351 over Build 14393.321), there may be lots of fixes and improvements coming with this build. While Microsoft will release a newer build to non-insiders on November 8, Build 14393.349 or Build 14393.351 may be released to insiders in release preview ring for testing and evaluation.

Read our full Anniversary update coverage:

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