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Release record

tvOS 13.3.1

Full article
Public release
Recorded milestones
4
Beta cycle
42d
Average interval
14d
Public release
Jan 28, 2020

Release notes

Overview

Editorial synthesis with inline references and a source ledger when citations are available.

Release overview

tvOS 13.3.1 was released on January 28, 2020. Apple's consumer update history describes only general performance and stability work, while the version-specific advisory supplies the detailed security record.[1][2]

Evidence boundary

Apple names no individual consumer feature or ordinary fix for this version. The archive therefore records the published maintenance description and security surfaces without inventing a more granular change list.[3][2]

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 tvOS 13.3.1

    Apple Support · Apple · 2020-01-28T00:00:00.000Z · Released January 28, 2020

    Back to text ↑
  2. About Apple TV 4K and Apple TV HD software updates

    Apple Support · Apple · 2026-07-29 · tvOS 13.3.1

    Back to text ↑
  3. About the security content of tvOS 13.3.1

    Apple Support · Apple · 2020-01-28T00:00:00.000Z · Audio; files; ImageIO; Kernel; libxml2; libxpc; WebKit; wifivelocityd

    Back to text ↑

Documented & observed

Changes in this version

Source-linked features, fixes, known issues, removals, and community-observed behavior recorded across this version’s appearances and verified builds.

Release changes

Changed in this release

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

security · fixed

tvOS 13.3.1 security repairs

documentedconfirmed

Apple's advisory records fixes across Audio, files, ImageIO, IOAcceleratorFamily, IOUSBDeviceFamily, the kernel, libxml2, libxpc, WebKit, and wifivelocityd.

Recorded at Public

  1. [1] About the security content of tvOS 13.3.1 · Audio; files; ImageIO; IOAcceleratorFamily; IOUSBDeviceFamily; Kernel; libxml2; libxpc; WebKit; wifivelocityd

Milestones

Release history

Every recorded channel appearance in chronological order. Open an appearance for any available build, scope, notes, and sources.

  2. +31 days
  3. +5 days
  4. +6 days

    Public release

    Public

    Full articleEditorially verified

    tvOS 13.3.1 reached the public channel on January 28, 2020 as a general performance and stability update with security repairs across media, files, drivers, the kernel, services, and WebKit.

    Availability
    available
    Sources
    3 linked
    Open this appearance

Historical context

Cycle comparison

Pace, intervals, and duration compared with earlier releases on the same platform.

Cycle vs. platform average

42d (avg: 58d)

16 days shorter than the tvOS average

Duration ranking

#32 of 50

Middle of the pack tvOS beta cycles

Longest gap in this cycle

31 days

Between Beta 1 and Beta 2

Official release notes