: Addressed the critical "KRACK" vulnerability, which could allow attackers to decrypt sensitive information transmitted over protected Wi-Fi networks. Bluetooth and Apple Pay
: This version introduced Unicode 10 emojis, including the "exploding head," "zebra," "giraffe," and "vampire". KRACK Wi-Fi Patch : It fixed a serious vulnerability in the WPA2 Wi-Fi standard that could allow attackers to decrypt network traffic. System Refinement : It continued the transition to the Apple File System (APFS) macos high sierra 10.13.1