" macOS Big Sur 11.1 introduces support for AirPods Max, TV app enhancements, Apple News widgets, & privacy information on the App Store. This release also includes bug fixes for your Mac.

This release also addresses the following issues:
- Bluetooth connection status was not displayed in Control Center.
- Reliability of unlocking your Mac automatically with your Apple Watch.
- Trackpad scrolling speed may be faster than expected on MacBook Pro models.
- LG UltraFine 5K Display may incorrectly display at 4K resolution on M1 Macs.
(Some (not all) M1 Mac owners with display problems said macOS 11.1 helped.)
- QuickTime Player might quit when opening a movie with a timecode track after upgrading from macOS Catalina.

(More details at App store page & What's new in macOS Big Sur Updates page..)

T2 Chip Mac Bug with macOS 11.1:
Apple posted a support article with a tip for macOS 11.1 problems on T2 Chip Macs.

"If you can't unlock settings in System Preferences
While using macOS Big Sur 11.1, your Mac with Apple T2 Security Chip has an issue that requires resetting the SMC. System Preferences should accept your password after you reset the SMC."

Security Update Downloads
• Download Security Update 2020-001 Catalina (1.33 GB)
• Download Security Update 2020-007 Mojave (1.7 GB)

• About the security content of Safari 14.0.2
  - Available for macOS Catalina and macOS Mojave.
  
  
• iOS 14.3 release notes
• iPadOS 14.3 release notes
• About the security content of iOS 14.3 and iPadOS 14.3
  
  
• iOS 12.5 release notes
• About the security content of iOS 12.5
  
  
• tvOS release notes has added tvOS 14.3 info
  
• About the security content of tvOS 14.3
  
  
• watchOS 7.2 release notes
• About the security content of watchOS 7.2
  
  
• watchOS 6.3 release notes
  - "This update provides important security updates and is recommended for all users".
• About the security content of watchOS 6.3

Display Firmware 4.2.37
- Addresses an issue where in-field calibration settings are not applied when using Pro Display XDR Calibrator.

Requires macOS 10.15.6 or later.

• Total War: WARHAMMER II The Twisted & The Twilight out now (feral interactive)
  
  
• Apple Adds TV Service to Google Chromecast, Continuing Expansion (bloomberg)
  
  
• Microsoft Office for Mac (365/2019) version 16.44 (20121301)
  - See Dec. 15 release notes (with security updates for Excel, Outlook, Powerpoint).
  
  
• macOS Server v5.11 for Big Sur (app store link)
  - About the security content of macOS Server 5.11
  
  
• Apple Xcode 12.3 (for macOS 10.15.4 or later)
  - Swift 5.3 and SDKs for iOS 14.3, iPadOS 14.3, tvOS 14.3, watchOS 7.2, Big Sur 11.1.
  - See linked page for more details.
  
  
• Mac iMovie version 10.2.2 (macOS 10.15.6 or later)
  - Adds share option for YouTube & Facebook to create a file for uploading.
  - Includes stability improvements
  
  
• iOS iMovie version 2.3.2 (iOS 14.0 or later)
  - see linked app store page for details on 5 bug fixes.
  
  
• Apple Clips version 3.0.1 (iOS 14.0 or later)
  - see linked app store page for details on 2 bug fixes.
  
  
• CSS Individual Transform Properties (webkit blog)
  
  
• Sonnet Fusion Dual U.2 SSD PCIe Card Review (storagereview)

• What's new in the updates for macOS Big Sur
  - updated to add info on Bug Sur 11.1 changes.
  
  
• If you get a personalization error when reinstalling macOS on a Mac with Apple M1 chip
  - Includes steps on how to fix the installation problem.
  
  
• Get help with security issues
  
  
• How to use external monitors with your Mac
  - Lots of M1 Mac owner problems with adapters, especially MiniDisplay Port related.
  (Adapters that worked with an Intel-based Mac, didn't with the M1 Mac.)
  
  
• Get help with video problems on external displays connected to your Mac
  
  
• How to erase your Intel-based Mac
  (was titled "How to erase a disk for Mac")
  
  
• How to set a firmware password on your Mac
  
  
• How to Set up iCloud Keychain
  
  
• (How to) Use Apple products on enterprise networks
  
  
• If your Apple TV won't turn on (and other problems)
  
  
• Cameras supported by Final Cut Pro X
  
  
• Measuring and calibrating Apple Pro Display XDR
  
  
• Get help with iCloud Photos
  
  
• How to Use Pages, Numbers, and Keynote with Box
  
  
• About Ask Siri, Dictation & Privacy

• HP Printer Drivers v5.1 for macOS (apple)
  - Hopefully this helps HP Printer owners that had problems in macOS Big Sur.
  - If using a M1 Mac, check if printer software supports M1, if not, open with Rosetta.
  (If none of that helps, try resetting the printing system.)
  
  
• Firefox 84.0 release notes and security fixes
  - Includes native support for M1 Macs.
  
  
• Firefox ESR 78.6 release notes
  - Various stability, functionality, and security fixes.
  
  
• v2.85 Firmware Update for 2015-17 Yamaha Receivers and CX-A5100
  
  
• Sabrent Rocket XTRM-Q USB / Thunderbolt 3 Dual Mode External SSD Review (anandtech)