enhancement · changed
Mail controls and Universal Purchase
The release refined Mail actions and added cross-platform Universal Purchase support.
Recorded at Public
- [1] About iOS 13 Updates · iOS 13.4 — Mail and App Store with Apple Arcade
Release record
Release notes
Editorial synthesis with inline references and a source ledger when citations are available.
Source ledger
Sources are linked to the claims they support. Publication and access dates are shown when available.
Apple Support · Apple · 2023-11-06T00:00:00.000Z · iOS 13.4 and iPadOS 13.4 — Released March 24, 2020
Documented & observed
Source-linked features, fixes, known issues, removals, and community-observed behavior recorded across this version’s appearances and verified builds.
Release changes
Features, fixes, removals, and regressions first observed in this release record.
enhancement · changed
The release refined Mail actions and added cross-platform Universal Purchase support.
Recorded at Public
feature · introduced
iOS 13.4 introduced shared iCloud Drive folders and expanded Memoji sticker choices.
Recorded at Public
security · fixed
Apple’s advisory lists multiple CVE-tracked fixes for the March 24 release.
Recorded at Public
bugFix · fixed
Apple grouped a broad maintenance set with the iOS 13.4 feature additions.
Recorded at Public
enhancement · changed
The update expanded supported AR content and keyboard prediction.
Recorded at Public
Milestones
Every recorded channel appearance in chronological order. Open an appearance for any available build, scope, notes, and sources.
Developer beta
Developer beta
Developer beta
Developer beta
Developer beta
Golden master
Build 17E255
Public release
iOS 13.4 reached the public release channel on March 24, 2020. iOS 13.4 added iCloud Drive folder sharing, new Memoji stickers, universal app purchases, Mail controls, and a broad maintenance set. This article records that public appearance only and does not assign cumulative notes to an earlier beta.
Historical context
Pace, intervals, and duration compared with earlier releases on the same platform.
Historical avg for .4 releases
49 days, 6.4 milestones
Based on 9 previous iOS .4 releases
Cycle vs. platform average
48d (avg: 58d)
10 days shorter than the iOS average
Longest gap in this cycle
14 days
Between Beta 1 and Beta 2