• Updating the dynamic linker shared cache is now enabled for High Sierra systems that have at least 4GB of RAM. Apple has addressed the issue that led to a watchdog reboot when running this utility, although it still consumes far too much memory to be practical for systems with less than 4GB of RAM.
  
  
• Fixed an issue with resetting the password for an encrypted disk image.
  
  
• A "454 temporary failure" error from an SMTP server is now properly handled.
  
  
• Fixed an issue in which the SIP-related fileflags for root-level hidden items on the destination were stripped and not replaced.
  
  
• Fixed a keychain retrieval bug that occurred when the hostname has a backslash character.

• Mac mini shuts down during sleep (apple forum thread)
  (See notes/tips in Feb 2013 post Why iMac/Mac Mini Powers Off after Hours of Sleep - Hibernates/Turns Off. 2012 and later mini, iMac, notebooks. Includes info on PMSET mods.)
  
  
• F1™ 2017 coming to macOS (via Steam) on August 25th (feral interactive)
  
  
• Hollywood, Apple Said to Mull Rental Plan, Defying Theaters (bloomberg)
  
  
• System requirements for BioShock Remastered on macOS (feral interactive)
  - macOS 10.12.5 or later, 2.4Ghz i5 (or better), 8GB of RAM or more.
  - Includes list of supported Macs and graphics cards.
  
  
• Firefox web browser for iOS v8.2 (iOS 9 or later)
  -This update contains stability improvements and bug fixes. (again)
  - It also includes much improved support for third-party keyboards.
  
  
• BioShock™ Remastered (1080P) surfaces on macOS August 22nd (feral)
  
  
• 3 Insights From Apple Inc.'s Job Boards (mfool)
  
  
• Google is paying Apple billions per year to remain on the iPhone, Bernstein says (cnbc)

• How to set a firmware password on your Mac
  
  
• How to Use FileVault to encrypt the startup disk on your Mac
  
  
• List of Startup key combinations for Mac
  
  
• What to do if your Mac won't turn on
  
  
• How to reset NVRAM on your Mac
  
  
• How to use safe mode to isolate issues with your Mac
  
  
• How to Use the LG UltraFine 5K Display with your Mac
  
  
• If you see a progress bar when your Mac wakes from sleep
  
  
• If you see error 9, 4005, 4013, or 4014 when you restore your iOS device

Page of How-To, Troubleshooting & Tips for Mac/OS X/iOS Users from Airplay to Thunderbolt.