<s>
A	O
new	O
version	O
of	O
AmigaOS	B-Application
was	O
released	O
on	O
December	O
24	O
,	O
2006	O
after	O
five	O
years	O
of	O
development	O
by	O
Hyperion	B-Operating_System
Entertainment	I-Operating_System
(	O
Belgium	O
)	O
under	O
license	O
from	O
Amiga	B-Device
,	O
Inc	O
.	O
for	O
AmigaOne	B-Device
registered	O
users	O
.	O
</s>
<s>
During	O
the	O
five	O
years	O
of	O
development	O
,	O
users	O
of	O
AmigaOne	B-Device
machines	O
could	O
download	O
from	O
Hyperion	O
repository	O
Pre-Release	O
Versions	O
of	O
AmigaOS	O
4.0	O
as	O
long	O
as	O
these	O
were	O
made	O
available	O
.	O
</s>
<s>
As	O
witnessed	O
by	O
many	O
users	O
into	O
Amiga	B-Device
discussion	O
forum	O
sites	O
,	O
these	O
versions	O
were	O
stable	O
and	O
reliable	O
,	O
despite	O
the	O
fact	O
that	O
they	O
are	O
technically	O
labeled	O
as	O
"	O
pre-releases	O
"	O
.	O
</s>
<s>
The	O
last	O
stable	O
version	O
of	O
AmigaOS	O
4.0	O
for	O
AmigaOne	B-Device
computers	O
is	O
the	O
"	O
July	O
2007	O
Update	O
"	O
,	O
released	O
for	O
download	O
18	O
July	O
2007	O
to	O
the	O
registered	O
users	O
of	O
AmigaOne	B-Device
machines	O
.	O
</s>
<s>
AmigaOS	B-Application
4	I-Application
Classic	O
was	O
released	O
commercially	O
for	O
older	O
Amiga	B-Device
computers	I-Device
with	O
CyberstormPPC	O
and	O
BlizzardPPC	O
accelerator	O
cards	O
in	O
November	O
2007	O
.	O
</s>
<s>
The	O
new	O
version	O
is	O
PowerPC-native	O
,	O
finally	O
abandoning	O
the	O
Motorola	B-Device
68k	I-Device
processor	B-General_Concept
.	O
</s>
<s>
AmigaOS	O
4.0	O
will	O
run	O
on	O
some	O
PowerPC	B-Architecture
hardware	O
,	O
which	O
currently	O
only	O
includes	O
A1200	B-Application
,	O
A3000	B-Device
and	O
A4000	B-Device
with	O
PowerPC	B-Architecture
accelerator	O
boards	O
and	O
AmigaOne	B-Device
motherboards	O
.	O
</s>
<s>
Amiga	B-Device
,	O
Inc.	O
'	O
s	O
distribution	O
policies	O
for	O
AmigaOS	O
4.0	O
and	O
any	O
later	O
versions	O
require	O
that	O
for	O
third-party	O
hardware	O
the	O
OS	O
must	O
be	O
bundled	O
with	O
it	O
,	O
with	O
the	O
sole	O
exception	O
of	O
Amigas	B-Device
with	O
Phase	O
5	O
PowerPC	B-Architecture
accelerator	O
boards	O
,	O
for	O
which	O
the	O
OS	O
will	O
be	O
sold	O
separately	O
.	O
</s>
<s>
AmigaOS	O
4.0	O
Final	O
introduced	O
a	O
new	O
memory	O
system	O
based	O
on	O
the	O
slab	B-General_Concept
allocator	I-General_Concept
.	O
</s>
<s>
The	O
developer	O
pre-release	O
version	O
was	O
a	O
snapshot	O
of	O
AmigaOS	O
4.0	O
for	O
AmigaOne	B-Device
.	O
</s>
<s>
The	O
AmigaOS	O
4.0	O
SDK	O
allowed	O
creation	O
of	O
new	O
software	O
and	O
migration	O
of	O
existing	O
AmigaOS	B-Operating_System
versions	I-Operating_System
3.x	O
source	O
code	O
to	O
OS	O
4.0	O
.	O
</s>
<s>
PowerPC	B-Architecture
native	O
Warp3D	B-Library
including	O
new	O
drivers	O
for	O
the	O
Voodoo	O
3	O
(	O
Avenger	O
)	O
,	O
Voodoo	O
4/5	O
(	O
Napalm	O
)	O
and	O
the	O
Radeon	B-Device
7x00	O
series	O
of	O
graphics	O
cards	O
.	O
</s>
<s>
New	O
drivers	O
include	O
single-cycle	O
multitexture	O
support	O
(	O
two	O
simultaneous	O
units	O
on	O
the	O
Voodoos	O
,	O
three	O
on	O
the	O
Radeon	B-Device
)	O
with	O
simplified	O
and	O
extended	O
combiner	O
modes	O
,	O
interleaved	O
vertex	O
arrays	O
,	O
up	O
to	O
8-bit	O
stencil	O
buffer	O
support	O
(	O
where	O
supported	O
by	O
hardware	O
)	O
,	O
and	O
more	O
.	O
</s>
<s>
The	O
new	O
3rd	O
party	O
powerpc.library	O
emulates	O
loading	O
and	O
execution	O
of	O
WarpUp	O
binaries	O
.	O
</s>
<s>
The	O
most	O
prominent	O
features	O
of	O
the	O
fourth	O
AmigaOS	O
4.0	O
Developer	O
Pre-release	O
Update	O
were	O
the	O
return	O
of	O
the	O
screen	O
dragging	O
ability	O
and	O
the	O
Petunia	O
just-in-time	O
68k	B-Device
emulator	O
.	O
</s>
<s>
New	O
Warp3D	B-Library
with	O
support	O
for	O
Voodoo	O
3/4/5	O
and	O
ATI	B-Device
Radeon	I-Device
models	O
7000	O
,	O
7200	O
,	O
7500	O
,	O
9000	O
,	O
9200	O
and	O
9250	O
.	O
</s>
<s>
Petunia	O
just-in-time	O
68k	B-Device
emulator	O
.	O
</s>
<s>
AmigaOS	O
4.0	O
Final	O
Update	O
introduced	O
a	O
new	O
memory	O
system	O
based	O
on	O
a	O
slab	B-General_Concept
allocator	I-General_Concept
.	O
</s>
<s>
A	O
new	O
ELF	O
library	O
that	O
implements	O
UN*	O
X-type	O
shared	O
objects	O
and	O
dynamic	B-Application
linking	I-Application
.	O
</s>
<s>
Python	B-Language
2.5.1	O
.	O
</s>
<s>
AmigaOS	O
4.0	O
for	O
Amiga	B-Application
1200	I-Application
,	O
Amiga	O
3000(T )	O
and	O
Amiga	O
4000(T )	O
series	O
of	O
computers	O
equipped	O
with	O
Phase5	O
PowerUP	O
PowerPC	B-Architecture
accelerator	O
cards	O
was	O
put	O
on	O
sale	O
in	O
November	O
2007	O
.	O
</s>
<s>
The	O
feature	O
set	O
was	O
equal	O
to	O
the	O
July	O
2007	O
update	O
with	O
drivers	O
for	O
Amiga	B-Device
expansion	O
cards	O
and	O
devices	O
and	O
some	O
minor	O
improvements	O
(	O
e.g.	O
</s>
<s>
Update	O
of	O
AmigaOS	O
4.0	O
for	O
classic	O
Amiga	B-Device
computers	I-Device
addressed	O
some	O
issues	O
and	O
compatibility	O
problems	O
.	O
</s>
<s>
On	O
21	O
June	O
2009	O
,	O
Hyperion	B-Operating_System
Entertainment	I-Operating_System
announced	O
the	O
immediate	O
availability	O
of	O
a	O
"	O
Quick	O
Fix	O
"	O
package	O
for	O
AmigaOne	B-Device
,	O
SAM/SAM	O
Flex	O
and	O
Pegasos	O
II	O
.	O
</s>
<s>
Fixed	O
Sam440ep	B-Device
Ethernet	O
driver	O
to	O
work	O
with	O
hubs	O
and	O
Envoy	O
.	O
</s>
<s>
On	O
14	O
January	O
2010	O
,	O
Hyperion	B-Operating_System
Entertainment	I-Operating_System
announced	O
the	O
immediate	O
availability	O
of	O
AmigaOS	O
4.1	O
Update	O
1	O
,	O
the	O
first	O
full	O
update	O
to	O
AmigaOS	O
4.1	O
.	O
</s>
<s>
Kernel	O
–	O
Offers	O
more	O
stability	O
on	O
Sam440	B-Device
,	O
a	O
more	O
reliable	O
and	O
efficient	O
memory	O
management	O
system	O
and	O
improved	O
memory	B-Architecture
paging	I-Architecture
to	O
and	O
from	O
hard	O
disk	O
.	O
</s>
<s>
Workbench	B-Operating_System
–	O
The	O
new	O
Startup	O
preferences	O
means	O
no	O
more	O
copying	O
files	O
to	O
WBStartup	O
.	O
</s>
<s>
Workbench	B-Operating_System
auto-update	O
feature	O
.	O
</s>
<s>
Python	B-Language
–	O
Tested	O
with	O
the	O
regression	O
suite	O
.	O
</s>
<s>
Enhanced	O
distutils	O
module	O
for	O
easy	O
installation	O
of	O
Python	B-Language
packages	O
.	O
</s>
<s>
New	O
Amiga	B-Device
modules	O
including	O
catalog	O
and	O
icon	O
.	O
</s>
<s>
On	O
30	O
April	O
2010	O
,	O
Hyperion	B-Operating_System
Entertainment	I-Operating_System
announced	O
the	O
immediate	O
availability	O
of	O
Update	O
2	O
for	O
AmigaOS	O
4.1	O
for	O
AmigaOne	B-Device
,	O
SAM440EP	B-Device
and	O
Pegasos	O
II	O
for	O
registered	O
users	O
.	O
</s>
<s>
Updated	O
Python	B-Language
.	O
</s>
<s>
New	O
Cairo	B-Language
1.8.10	O
with	O
partial	O
hardware	O
acceleration	O
.	O
</s>
<s>
New	O
version	O
of	O
the	O
Python-scriptable	O
installation	O
utility	O
.	O
</s>
<s>
On	O
17	O
May	O
2011	O
,	O
AmigaOS	O
4.1	O
for	O
Commodore	B-Device
Amigas	I-Device
with	O
PowerUP	O
accelerators	O
was	O
released	O
.	O
</s>
<s>
Improved	O
Sam460ex	B-Device
support	O
including	O
sound	O
driver	O
.	O
</s>
<s>
I2C	O
support	O
for	O
the	O
Sam440ep	B-Device
and	O
Sam460ex	B-Device
platforms	O
.	O
</s>
<s>
Updated	O
and	O
improved	O
Warp3D	B-Library
.	O
</s>
<s>
On	O
December	O
22	O
,	O
2011	O
,	O
Hyperion	B-Operating_System
Entertainment	I-Operating_System
released	O
a	O
minor	O
update	O
to	O
correct	O
many	O
bugfixes	O
from	O
the	O
third	O
update	O
of	O
AmigaOS	O
4.1	O
and	O
introduces	O
something	O
new	O
.	O
</s>
<s>
Introducing	O
the	O
new	O
Emulation	O
drawer	O
with	O
official	O
AmigaOS	B-Application
3.x	O
ROMs	O
and	O
Workbench	B-Operating_System
files	O
.	O
</s>
<s>
AmigaOS	B-Application
ROMs	O
are	O
provided	O
for	O
all	O
classic	O
Amiga	B-Device
models	O
and	O
the	O
CD32	O
platform	O
.	O
</s>
<s>
New	O
scsi.device	O
patch	O
for	O
Classic	O
installations	O
which	O
enables	O
internal	O
IDE	O
drives	O
to	O
be	O
used	O
for	O
memory	B-Architecture
paging	I-Architecture
(	O
SWAP	O
)	O
.	O
</s>
<s>
Various	O
Workbench	B-Operating_System
fixes	O
.	O
</s>
<s>
Update	O
5	O
was	O
first	O
public	O
release	O
for	O
AmigaOne	B-Device
X1000	I-Device
on	O
28	O
January	O
2012	O
.	O
</s>
<s>
It	O
was	O
a	O
rather	O
unusual	O
update	O
in	O
that	O
regard	O
that	O
it	O
included	O
no	O
bug	O
fixes	O
(	O
except	O
new	O
IDE	O
,	O
Xena	O
,	O
and	O
Kicklayout	O
files	O
for	O
AmigaOne	B-Device
X1000	I-Device
)	O
.	O
</s>
<s>
A	O
new	O
"	O
Update	O
software	O
...	O
"	O
menu	O
item	O
on	O
Workbench	B-Operating_System
will	O
launch	O
AmiUpdate	O
which	O
handles	O
all	O
future	O
AmigaOS	B-Application
4	I-Application
software	O
updates	O
.	O
</s>
<s>
New	O
Workbench	B-Operating_System
features	O
with	O
updated	O
context	O
menus	O
and	O
thumbnail	O
previews	O
of	O
images	O
.	O
</s>
<s>
through	O
the	O
use	O
of	O
on-chip	O
DMA	O
engines	O
(	O
present	O
on	O
recently	O
released	O
hardware	O
going	O
back	O
to	O
the	O
Sam440	B-Device
)	O
.	O
</s>
<s>
Updated	O
Python	B-Language
port	O
.	O
</s>
