Patched a severe vulnerability that allowed unauthorized access via the "root" username without a password.
While High Sierra as a whole focused on "under-the-hood" refinements like the and Metal 2 graphics, the 10.13.1 update addressed early stability issues: macos high sierra 10.13.1 dmg
Resolved a notable memory leak in the WindowServer that previously caused graphic lag and animation delays. System Requirements & Compatibility macos high sierra 10.13.1 dmg
Because Apple has largely hidden older OS versions from direct Mac App Store searches, finding a full installer can be tricky. macos high sierra 10.13.1 dmg
2GB RAM minimum (8GB recommended for modern performance).
At least 14.3GB of available disk space for the upgrade process.