Versions
| Version | Release Date | Introduced Features | |
|---|---|---|---|
| 4.0 | Developer Pre-release | April 2004 | First public release |
| 4.0 | Developer Pre-release Update | 10 October 2004 | AltiVec support, PowerPC-native Picasso96 and MUI, USB support for input devices |
| 4.0 | Developer Pre-release Update 2 | 27 December 2004 | Mass Storage Support for USB |
| 4.0 | Developer Pre-release Update 3 | 14 June 2005 | PowerPC native Warp3D drivers for Voodoo 3 (Avenger), Voodoo 4/5 (Napalm) and the Radeon 7x00 series of graphics cards; WarpOS support |
| 4.0 | Developer Pre-release Update 4 | 8 February 2006 | Petunia just-in-time 68k emulator; Warp3D with support for Voodoo 3/4/5 and ATI Radeon models 7000, 7200, 7500, 9000, 9200 and 9250; Intuition supports screen dragging |
| 4.0 | The Final Update | 24 December 2006 | Virtualized memory and faster memory allocation system (Slab allocator); new icon theme (Mason icons) |
| 4.0 | July 2007 Update | 18 July 2007 | Support for Shared objects; Python 2.5.1; merge of Tools and Utilities drawers |
| 4.0 | for Classic Amiga | November 2007 | July 2007 Update baseline |
| 4.0 | February 2008 update for CyberStormPPC and BlizzardPPC | 23 February 2008 | Addressed some issues and compatibility problems |
| 4.1 | AmigaOS 4.1 | September 2008 | Memory paging; JXFS filesystem; Hardware compositing engine; Cairo device-independent 2D rendering library |
| 4.1 | Quick Fix | 21 June 2009 | Addressed some issues (Warp 3D drivers, IDE drivers, JXFS) |
| 4.1 | Update 1 | 14 January 2010 | Improved compositing effects (fading and drop shadows); New notification system Ringhio; DDC support; AppDir: handler and URLopen; new Startup preferences; new icon set; MiniGL V2.2 |
| 4.1 | Update 2 | 30 April 2010 | Updated Python; Cairo 1.8.10 (partial hardware acceleration); AmiDock supports icon scaling |
| 4.1 | Update 3 | 29 August 2011 | USB 2.0 (EHCI) support; Updated MUI (for easier porting of MUI 4 applications) |
| 4.1 | Update 4 | 22 December 2011 | Emulation drawer with AmigaOS 3.x ROMs and Workbench files; RunInUAE contribution |
| 4.1 | Update 5 | 28 January 2012, 16 August 2012 | First public release for AmigaOne X1000, later for other platforms. Improved Warp3D and IDE drivers; optimized DMA copy support for Sam440ep and Sam460ex systems; improved Classic compatibility (support for Catweasel) |
| 4.1 | Update 6 | 30 November 2012 | Auto-update of system components through AmiUpdate |
Read more about this topic: Amiga OS 4
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