Original Release Date: November 2, 2025
Year of Release: 2005
Release Version Number: 10.4
Architecture Supported: PowerPC
Mac OS X 10.4 Tiger was released in April 2005, introducing over 200 new features.
Key features included Spotlight for instant system-wide search, Dashboard with widgets, Safari RSS reader, Smart Folders in Finder, Automator for workflow automation, QuickTime 7 with H.264 support, and VoiceOver screen reader.
Enhanced iChat with multi-person video conferencing. Major architectural changes: 64-bit application support on G5 processors, improved virtual memory system. Core Image and Core Video frameworks for real-time image processing. Significantly improved graphics performance and rendering capabilities.