bugFix · fixed
tvOS 13.3 performance and stability work
documentedconfirmed
Apple documented tvOS 13.3 as a maintenance release and did not publish an itemized consumer-facing fix list.
Recorded at Public
Release record
tvOS 13.3
Full article
Public release
- Recorded milestones
- 5
- Beta cycle
- 35d
- Average interval
- 9d
- Public release
- Dec 10, 2019
Release notes
Overview
Editorial synthesis with inline references and a source ledger when citations are available.
Release overview
tvOS 13.3 was released on December 10, 2019. Apple's consumer history records general performance and stability improvements, supplemented by a version-specific security advisory.[1][2]
Evidence boundary
Source ledger
References
Sources are linked to the claims they support. Publication and access dates are shown when available.
- About the security content of tvOS 13.3
Apple Support · Apple · 2019-12-10T00:00:00.000Z · Released December 10, 2019
- About Apple TV 4K and Apple TV HD software updates
Apple Support · Apple · 2026-07-29 · tvOS 13.3
- About the security content of tvOS 13.3
Apple Support · Apple · 2019-12-10T00:00:00.000Z · tvOS 13.3 security content
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 security repairs
documentedconfirmed
The release repaired vulnerabilities in network policy and proxies, FaceTime media, the kernel, XML and packet-capture libraries, privilege boundaries, and WebKit.
Recorded at Public
- [1] About the security content of tvOS 13.3 · CFNetwork; CFNetwork Proxies; FaceTime; Kernel; libexpat; libpcap; Security; WebKit
Milestones
Release history
Every recorded channel appearance in chronological order. Open an appearance for any available build, scope, notes, and sources.
Developer beta
Beta 1
Timeline onlyLegacy record- Availability
- available
- Sources
- Awaiting claim-level sources
- +7 days
Developer beta
Beta 2
Timeline onlyLegacy record- Availability
- available
- Sources
- Awaiting claim-level sources
- +8 days
Developer beta
Beta 3
Timeline onlyLegacy record- Availability
- available
- Sources
- Awaiting claim-level sources
- +15 days
Developer beta
Beta 4
Timeline onlyLegacy record- Availability
- available
- Sources
- Awaiting claim-level sources
- +5 days
Public release
Public
Full articleEditorially verifiedtvOS 13.3 reached the public channel on 2019-12-10. This article records Apple's version-labeled feature or maintenance notes and the accompanying first-party security record.
- Availability
- available
- Sources
- 4 linked
Historical context
Cycle comparison
Pace, intervals, and duration compared with earlier releases on the same platform.
Historical avg for .3 releases
46 days, 5.5 milestones
Based on 4 previous tvOS .3 releases
Cycle vs. platform average
35d (avg: 59d)
24 days shorter than the tvOS average
Duration ranking
#43 of 50
Middle of the pack tvOS beta cycles
Longest gap in this cycle
15 days
Between Beta 3 and Beta 4