Download Updaters for macOS 10.15.1 Update, Security Updates for macOS 10.14.6 and 10.13.6
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macOS Catalina 10.15.1 Update (new features/bug fixes)   [= skip to Security Updates =]
Available via software update or this download page (4.53 GB).
macOS Catalina 10.15.1 includes updated and additional emoji, support for AirPods Pro, HomeKit Secure Video, HomeKit enabled routers, and new Siri privacy settings, as well as bug fixes and improvements.

- Introduces support for AirPods Pro

Home app
- HomeKit Secure Video enables you to privately capture, store, and view encrypted video from your security cameras and features people, animal, and vehicle detection.
- HomeKit enabled routers let you control how your HomeKit accessories communicate over the internet or in your home.
- Adds support for AirPlay 2-enabled speakers in scenes and automations.

- Privacy settings to control whether or not to help improve Siri and Dictation by allowing Apple to store audio of your Siri and Dictation interactions.
- Option to delete your Siri and Dictation history from Siri Settings

- Over 70 new or updated emoji...

This update also includes the following bug fixes and improvements:

- Restores the ability to view file names in the All Photos view in Photos.

- Restores the ability to filter by favorites, photos, videos, edited, and keywords in Days view in Photos.

- Fixes an issue where Messages would only send a single notification when the option to repeat alerts was enabled.

- Resolves an issue that caused Contacts to launch to the previously opened contact instead of the contact list.

- Adds a two-finger swipe gesture for back navigation in Apple News.

- Resolves issues that may occur in the Music app when displaying playlists inside folders and newly added songs in the Songs list.

- Improves reliability of migrating iTunes library databases into the Music, Podcasts, and TV apps.

- Fixes an issue where downloaded titles were not visible in the Downloads folder in the TV app.

(The 10.15.1 update also Fixes Kernel Prelinking.)

The 10.15.1 update includes Safari 13.0.3. (Article below on security fixes in 10.15.1.)

New GPU/eGPU Support:
Apple's article on using an external graphics processor with your Mac has a new note about support in macOS Catalina 10.15.1:

"AMD Radeon RX 5700, 5700 XT, and 5700 XT 50th Anniversary
If you've installed macOS Catalina 10.15.1 or later, you can use these graphics cards that are based on the AMD Navi RDNA architecture. Recommended graphics cards include the AMD Radeon RX 5700, AMD Radeon RX 5700 XT, and AMD Radeon RX 5700 XT 50th Anniversary.
Recommended Thunderbolt 3 chassis for these graphics cards:
- Sonnet eGFX Breakaway Box 650W4
- Razer Core X4"

Security Update 2019-001 (Mojave) and Security Update 2019-006 (High Sierra)
Here's the article About the security content of macOS Catalina 10.15.1, Security Update 2019-001, and Security Update 2019-006. Below are download pages for the updates.

If you use Nvidia's web graphics drivers for 10.13.6, remember Security Updates are a new build number, requiring an Nvidia driver update. (Update: See Oct. 30th Nvidia driver update.)

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Safari 13.0.3, iOS 13.2, iPadOS 13.2, iOS 12.4.3 and tvOS 13.2 Updates

Recent Updates, Tips, DIY Upgrades and Repairs:
List of Updates, DIY Upgrades, Repair Articles, Tips and more you may have missed. (Topics range from OS/software updates and troubleshooting, to hardware upgrades and repairs.)

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