Macos High Sierra 10.13.1 Jun 2026

While it is no longer supported by Apple with security updates, remains relatively stable. However, users should be aware of vulnerabilities such as Spectre and Meltdown, which impacted performance and security on older processors. Frequently Asked Questions

The Photos app received significant user interface updates in High Sierra, including a persistent sidebar and new editing tools. The 10.13.1 update specifically fixed an issue where some imported Live Photos could appear distorted or lose their animation effects. 5. Enterprise and Exchange Improvements

Many users experienced syncing issues with Microsoft Exchange accounts on the initial High Sierra release. The 10.13.1 patch fixed a bug that caused Exchange message synchronization to stall or fail completely. Critical Security Fixes macos high sierra 10.13.1

In response, Apple issued an official apology, released a fix, and advised users upgrading from the base version to reboot their systems afterward to ensure the patch was properly applied.

Backing up to a network SMB share (e.g., a Windows server or a Linux NAS) remained slower than with macOS Sierra. 10.13.1 improved reliability but not speed; initial backups could take 2–3x longer than HFS+ equivalents. While it is no longer supported by Apple

Non-Apple SSDs upgraded with third-party NVMe adapters sometimes fail to recognize the APFS partition format during installation. Ensuring the drive has the latest manufacturer firmware usually resolves the issue. The Verdict: Why 10.13.1 Mattered

Users of USB-C audio adapters (especially third-party brands) reported up to 300ms of delay in apps like GarageBand and Skype. Apple never acknowledged this, but community testing suggested a driver regression in the CoreAudio stack. The 10

Because macOS High Sierra 10.13.1 shares the same base requirements as the main 10.13 release, it supports the following Apple hardware: Late 2009 or newer MacBook Air: Late 2010 or newer MacBook Pro: Mid 2010 or newer Mac Mini: Mid 2010 or newer iMac: Late 2009 or newer Mac Pro: Mid 2010 or newer Installation and Troubleshooting