Sorbet Leopard

"Sorbet Leopard" is the nickname of Mac OS X 10.5.9, an unofficial build of Mac OS X 10.5 (Leopard) that was first released on October 31, 2021 to provide continued support solely for PowerPC Macs. It combines elements of Mac OS X 10.5.8 and the PowerPC beta of Mac OS X 10.6 (Snow Leopard), while removing unneeded Intel binaries to streamline the system for improved PowerPC performance.

Features

 * Faster startup times, application launch times, and network performance
 * Smoother and more fluid UI animations
 * Full compatibility with the Apple Aluminum Keyboard and Magic Mouse (with Momentum Scrolling)
 * Desktop pictures, user pictures, screen savers, fonts, and Apple dictionaries inline with Mac OS X 10.6.8 (Snow Leopard), alongside apps such as Dashboard 1.7, Exposé 1.1, Front Row 1.1, Spaces 1.1, Time Machine 1.1, Java Preferences 13.9.8, and System Profiler 10.6.0
 * Comprehensive system themes inline with Mac OS X 10.8.5 (Mountain Lion), macOS 10.13.6 (High Sierra), and iOS 7, featuring authentic desktop pictures, user pictures, and screen savers unique to each theme
 * Updated security certificates inline with macOS 10.13.6 (High Sierra)
 * Updated applications including WebKit 604.5.6, Mail with WebKit integration, QuickTime 7.7 Pro, Bash 4.3.30, and ntpd 4.2.8
 * Deeply integrated optimizations such as a reduced OS size, reduced CPU and RAM usage, PowerPC-only code everywhere, and system-wide ad blocking

Requirements

 * PowerPC G4 or G5 processor.
 * At least 512 MB RAM.
 * 20 GB or larger Apple Partition Map-formatted partition.
 * Core Image-supported video card is strongly recommended.
 * USB 2.0 interface is strongly recommended.
 * Flash-based storage is suggested.