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Release record

macOS 11.0

Released as macOS 11.0.1

Full article
Public release
Recorded milestones
11
Beta cycle
143d
Average interval
14d
Public release
Nov 12, 2020

Release notes

Overview

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

Release overview

The existing local macOS 11.0 record represents the November 12, 2020 public launch of macOS Big Sur. Apple shipped and documented that release as 11.0.1, pairing a redesigned interface with major Safari, Messages, Maps, privacy, Apple-silicon, and developer-platform changes.[1][2][3]

Evidence boundary

This bundle preserves the audited local 11.0 route instead of creating or renaming a release record. Apple's launch story says App Store privacy summaries were coming later in 2020, so they are not attributed to the launch event; security claims use the 11.0.1 advisory.[2][4][5]

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 macOS Big Sur 11.0.1

    Apple Support · Apple · 2020-11-12T00:00:00.000Z · macOS Big Sur 11.0.1 — Released November 12, 2020

    Back to text ↑
  2. macOS Big Sur 11.0.1 Release Notes

    Apple Developer · Apple · 2026-07-30 · macOS Big Sur 11.0.1 Release Notes

    Back to text ↑
  3. macOS Big Sur is here

    Apple Newsroom · Apple · 2020-11-12T00:00:00.000Z · UPDATE November 12, 2020; Availability

    Back to text ↑
  4. About the security content of macOS Big Sur 11.0.1

    Apple Support · Apple · 2020-11-12T00:00:00.000Z · macOS Big Sur 11.0.1

    Back to text ↑
  5. macOS Big Sur is here

    Apple Newsroom · Apple · 2020-11-12T00:00:00.000Z · Privacy — feature marked coming later this year

    Back to text ↑
  6. macOS Big Sur is here

    Apple Newsroom · Apple · 2020-11-12T00:00:00.000Z · November 12, 2020; Availability

  7. About the security content of macOS Big Sur 11.0.1

    Apple Support · Apple · 2020-11-12T00:00:00.000Z · Released November 12, 2020

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.

enhancement · changed

Messages inline replies and mentions

documentedconfirmed

Big Sur made busy group chats easier to follow by tying replies to individual messages and directing attention to named participants.

Recorded at Public

  1. [1] macOS Big Sur is here · Messages — group messaging features

developerApi · changed

Mac Catalyst and SwiftUI development updates

documentedconfirmed

Apple updated its cross-platform frameworks so developers could adapt interfaces to Mac conventions and share more implementation across platforms.

Recorded at Public

  1. [1] macOS Big Sur is here · Developers — Mac Catalyst and SwiftUI

enhancement · changed

Messages pins, search, effects, and Memoji

documentedconfirmed

The Mac messaging client gained faster access to important threads and more expressive tools aligned with Messages on Apple's other platforms.

Recorded at Public

  1. [1] macOS Big Sur is here · Messages: An Even More Engaging, Expressive Experience

security · introduced

Safari privacy and password protections

documentedconfirmed

The browser exposed blocked-tracker information, privately checked saved credentials against breach data, and let users restrict extension access by site and time.

Recorded at Public

  1. [1] macOS Big Sur is here · Safari Privacy Report; password monitoring; extensions

compatibility · introduced

Apple silicon, Universal apps, and Rosetta 2

documentedconfirmed

The operating system supplied the platform transition layer for native Apple-silicon software and continued use of many unconverted Intel applications.

Recorded at Public

  1. [1] macOS Big Sur is here · Developers: Bringing More Apps Than Ever to the Mac

enhancement · changed

Redesigned interface, Control Center, and Notification Center

documentedconfirmed

The system refresh updated windows, controls, icons, and app chrome while centralizing common settings and richer glanceable information.

Recorded at Public

  1. [1] macOS Big Sur is here · Refreshed Design: Focused and Familiar

enhancement · changed

Safari tabs, start page, and translation

documentedconfirmed

Big Sur reorganized Safari browsing around clearer tab identification, a personalized landing page, page translation, and Mac App Store extension discovery.

Recorded at Public

  1. [1] macOS Big Sur is here · Safari: Faster, More Personal, and More Private

feature · introduced

Cycling and electric-vehicle route planning

documentedconfirmed

The release added route planning that accounted for cycling conditions and electric-vehicle needs before handing navigation to a mobile device.

Recorded at Public

  1. [1] macOS Big Sur is here · Maps — cycling and electric vehicle trips

developerApi · changed

Kernel and runtime platform changes

documentedconfirmed

Apple's developer notes document a built-in dynamic-linker cache, stricter extension loading, longer argument support, and expanded kevent exit-status observation.

Recorded at Public

  1. [1] macOS Big Sur 11.0.1 Release Notes · Kernel — New Features; Known Issues; Deprecations

enhancement · changed

Maps Guides, Look Around, and indoor maps

documentedconfirmed

Big Sur expanded discovery and place context on Mac with shareable collections, immersive street views, and venue interiors.

Recorded at Public

  1. [1] macOS Big Sur is here · Maps: Discover the Next Adventure

security · fixed

Big Sur 11.0.1 security repairs

documentedconfirmed

Apple's detailed advisory records a broad initial security baseline for Big Sur, including issues in graphics, audio, Finder, images, the kernel, Sandbox, SQLite, and web processing.

Recorded at Public

  1. [1] About the security content of macOS Big Sur 11.0.1 · AMD; Audio; CoreGraphics; Finder; FontParser; ImageIO; Kernel; Sandbox; SQLite; WebKit

compatibility · introduced

iPhone and iPad apps on Apple-silicon Macs

documentedconfirmed

Big Sur expanded the Mac app catalog by allowing eligible mobile applications to run directly on the new architecture.

Recorded at Public

  1. [1] macOS Big Sur is here · Developers — iPhone and iPad apps on Mac

Milestones

Release history

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

  2. +15 days
  3. +15 days
  4. +13 days
  5. +14 days
  6. +16 days
  7. +14 days
  8. +5 days
  9. +7 days
  10. +15 days
  11. +29 days

    Public release

    Public

    Full articleEditorially verified

    The existing macOS 11.0 route reached its audited public appearance on November 12, 2020, corresponding to Apple's Big Sur 11.0.1 launch documentation and its design, app, platform, and security record.

    Availability
    available
    Sources
    18 linked
    Open this appearance

Historical context

Cycle comparison

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

Historical avg for major releases

118 days, 11.4 milestones

Based on 5 previous macOS .0 releases

Cycle vs. platform average

143d (avg: 102d)

41 days longer than the macOS average

Longest gap in this cycle

29 days

Between Beta 10 and Public

Previous .0 releases (macOS)

Previous comparable macOS releases
VersionYearCycleMilestonesAvg. Interval
macOS 26.0202598d1110d
macOS 15.0202498d912d
macOS 14.02023113d1013d
macOS 13.02022140d1411d
macOS 12.02021140d1312d

Scroll horizontally to compare every historical field.

Official release notes