While it was a minor version bump, 10.13.1 introduced several significant changes:
T-Rex, zebra, giraffe, vampire, wizard, and fairy. Food items: Dumplings, pie, pretzel, and take-out boxes. macos high sierra 10.13.1
The immediate post-release period for 10.13.1 was overshadowed by a major security incident. Shortly after its launch, a critical flaw was discovered that allowed anyone to gain root-level access to a Mac by simply entering the username root and leaving the password field blank. While it was a minor version bump, 10