Release date: September 2008 (AmigaOne), October 17, 2008 (SAM440 beta version), visit the official website
Announcements: AmigaOS 4.1
Update 1: released on August 29th, 2011
Update 2: released on December 23, 2020

Shipped with:

Media: Kickstart on disc

Major enhancements:

• Added/Improved: DOS functionality (full 64-bit support, universal notification support, automatic expunge and reload of updated disk resources)
• Added: Hardware compositing engine (Radeon R1xx and R2xx family)
• Added: Implementation of the "Cairo" device-independant 2D rendering library
• Added: Intelligent memory paging
• Added: JXFS filesystem with support for drivers and partitions of multiple terabyte size
• Added: Picture Transfer Protocol (PTP) support for greater digital camera compatibility
• Improved: 3D hardware accelerated screen-dragging
• Improved: AmiDock with true transparency
• Improved: Warp3D Radeon drivers with new functionality
• Improved: Workbench functionality

Example diskette(s):