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Release appearance

watchOS 5.1 Public

Full article
Public release

Recorded context

About this appearance

watchOS 5.1 reached the public channel on October 30, 2018 according to Apple's version-specific security advisory; Apple's current consumer history supplies no retained 5.1 feature or maintenance note.

Date
Oct 30, 2018
Availability
available
Revision
No

Release notes

What changed

Original editorial synthesis. Linked references appear with the claims they support and in the source ledger.

Public release

Apple's security record dates watchOS 5.1 to October 30, 2018. The living consumer update page omits a 5.1 section, so this archive distinguishes the confirmed release from the absent consumer narrative.[1][2]

Documented scope

Only security work enumerated in Apple's advisory is structured below. The page does not borrow 5.1.1 notes or infer why Apple's current consumer history omits 5.1.[3][4]

Source ledger

References

Sources are linked to the claims they support. Publication and access dates are shown when available.

  1. About the security content of watchOS 5.1

    Apple Support · Apple · 2018-10-30T00:00:00.000Z · Released October 30, 2018

    Back to text ↑
  2. About watchOS 5 Updates

    Apple Support · Apple · 2026-07-30 · watchOS 5.0.1 through watchOS 5.1.1

    Back to text ↑
  3. About the security content of watchOS 5.1

    Apple Support · Apple · 2018-10-30T00:00:00.000Z · watchOS 5.1 security content

    Back to text ↑
  4. About watchOS 5 Updates

    Apple Support · Apple · 2026-07-30 · watchOS 5.1.1

    Back to text ↑
  5. About the security content of watchOS 5.1

    Apple Support · Apple · 2018-10-30T00:00:00.000Z · CoreCrypto; ICU; IPSec; Kernel; Mail; NetworkExtension; Safari Reader; Security; WebKit; Wi-Fi

  6. About watchOS 5 Updates

    Apple Support · Apple · 2026-07-30 · watchOS 5 update index

Release changes

Changed in this release

Features, fixes, removals, and regressions first observed in this release record.

security · fixed

watchOS 5.1 security repairs

documentedconfirmed

Apple's advisory records memory-safety, privilege, information-disclosure, denial-of-service, DNS-leak, cross-site-scripting, and wireless fixes.

  1. [1] About the security content of watchOS 5.1 · CoreCrypto; ICU; IPSec; Kernel; Mail; NetworkExtension; Safari Reader; Security; WebKit; Wi-Fi