The launch of macOS High Sierra (10.13) marked the controversial shift from HFS+ to the new for solid-state drives. However, the initial rollout had gaps. 10.13.1 improved the compatibility and reliability of APFS, specifically addressing issues with FileVault-encrypted volumes and external drives.
macOS High Sierra 10.13.1 was not a groundbreaking overhaul, but it was a mandatory safety net. By patching the critical KRACK Wi-Fi flaw and stabilizing the newly introduced APFS architecture, it transformed High Sierra into a reliable daily driver. For vintage Mac enthusiasts, it remains a vital stepping stone in keeping classic Apple hardware functional and secure. If you need help with this specific version, tell me: What are you trying to update? Are you encountering a specific error message ? Do you need assistance creating a bootable USB installer ?
: Addressed an issue where the Spotlight search bar occasionally stopped accepting keyboard input. Critical Security Fixes
For users who had hesitated to upgrade to High Sierra due to fears of file corruption, 10.13.1 served as a stability anchor, proving that the new file system was ready for daily driver status. macos high sierra 10.13.1
: Added over 70 new emoji based on Unicode 10, including mythical creatures (vampires, wizards), animals (T-Rex, zebra, giraffe), and new expressive smiley faces.
When users installed 10.13.1, the most immediate visual change was in the emoji picker. Apple introduced over 70 new characters to reflect a broader range of professions and cultural symbols.
As of late 2020, macOS High Sierra is by Apple and does not receive new security updates. macOS High Sierra 10.13.1 Details Release Date October 31, 2017 File System APFS (default for SSDs) Major Security Fix WPA2 KRACK vulnerability Visual Changes 70+ Unicode 10 emoji End of Support November 12, 2020 Using macOS High Sierra in 2025 The launch of macOS High Sierra (10
Improved graphics performance, window management rendering, and external GPU (eGPU) stability. System Requirements and Compatibility
However, a major complication soon emerged. It was discovered that for users upgrading from , the security patch would be undone or reversed . Worse still, even reapplying the security patch did not fully seal the hole until the Mac was restarted, a requirement not communicated by the installation process. This meant that many users who thought they were protected were in fact still vulnerable after the major 10.13.1 update. Apple issued a rare, public apology for this massive oversight, stating: "Security is a top priority for every Apple product, and regrettably we stumbled with this release of macOS." The official fix was incorporated into the subsequent macOS High Sierra 10.13.2 update.
Summary
macOS High Sierra 10.13.1 was a significant incremental update that addressed several issues and introduced new features. Some of the key changes include:
Enterprise users saw significant improvements in the native Mail app. Version 10.13.1 resolved several sync issues with Microsoft Exchange Server 2016, including better handling of meeting invitations and corrected search results in shared mailboxes.