It should be noted that due to caching issues in Apple’s regional server configurations, there may be a slight delay in the detection of upgrade updates in some areas
By Sam Ovie
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Published on September 14, 2026
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1 min read
Apple today pushed out the watchOS 27.0 update (build number: 24R364) to Apple Watch users.
It should be noted that due to caching issues in Apple’s regional server configurations, there may be a slight delay in the detection of upgrade updates in some areas, which is generally within half an hour and will not take too long.
This article was published and notified, we will bring you detailed updates later.
Appendix: watchOS 27 release history
- 2026-09-10: watchOS 27.0 RC (24R363)
- 2026-09-01: watchOS 27.0 Beta 8 (24R5360a)
- 2026-08-25: watchOS 27.0 Beta 7 (24R5358a)
- 2026-08-18: watchOS 27.0 Beta 6 (24R5353a)
- 2026-08-11: watchOS 27.0 Beta 5 (24R5347a)
- 2026-07-21: watchOS 27.0 Beta 4 (24R5325h)
- 2026-07-07: watchOS 27.0 Beta 3 (24R5315i)
- 2026-06-24: watchOS 27.0 Beta 2 (24R5305g)
- 2026-06-09: watchOS 27 Beta (24R5289n)
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